## Help

Date: 17/08/2015

By: **monika**

What is say 4dividedby 0. Is it infinity or not defined.

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Date: 17/08/2015

By: **preeti**

a (4x3) matrix is given .in how many ways a person can move from A(0,0) to B(4,3). if he is only allowed to move to right or upward to reach the position B( 4, 3).

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Date: 17/08/2015

By: **preeti**

1x1 no. of ways is 2.

1x2 no. of ways is 3.

2x2 no. of ways is 6.

2x3 no. of ways is 10.

found it diffcult to count any further, seems there should be a pattern ...please suggest a genaral formula for MXN

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Date: 17/08/2015

By: **aditi**

what is the period of Sin2x?

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Date: 17/08/2015

By: **aakriti**

its pi, i thnk. correct me if i am wrong

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Date: 17/08/2015

By: **sheenam**

the period of sin(2x) is pi.

in general,

the period of sin(nx) is 2*pi/n

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Date: 14/05/2014

By: **aanchal**

is it necessary that every prime no is of the form 6n+1 or 6n-1??

what justification should we give in the first ques??

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Date: 13/05/2014

By: **prachi**

### Subject: bma

Make a grid of natural numbers from 400-500. Find all the prime numbers in the grid. Identify all pairs of twin primes in the grid that you have made. Can all the prime numbers identified by you in the grid be represented as 6n-1 or 6n+1, where n is a natural number? Justify your answer.

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Date: 19/01/2014

By: **swati**

May I get the last semester's bma question paper or sample paper? so that I could have an idea about our fc paper.

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Date: 19/01/2014

By: **geetanjali**

1. Explain any encryption- decryption technique. Use it to encrypt and decrypt ‘INDIA IS MY

COUNTRY’.

2. Make a grid of natural numbers from 400-500. Find all the prime numbers in the grid. Identify all pairs of twin primes in the grid that you have made. Can all the prime numbers identified by you in the grid be represented as 6n-1 or 6n+1, where n is a natural number? Justify your answer.

3. Let p be any prime number and a&b be any two natural numbers. Justify what all possible values a and b take to satisfy

I.

II. = 1

III. = p2

IV. = 5

V. = 1

where ab means a multiplied by b.

4. Categorize following into Primary and Secondary data sources:

(i) Official Websites

(ii) Magazines

(iii) Newspaper

(iv) Journals

(v) Telephone

(vi) Interview

(vii) Questionnaire

(viii) Survey

(ix) Official Reports

(x) Internet

5. Justify your choice of mean, mode or median in the following cases:

I. A shopkeeper needs to stock his shop with different brands of chocolates. He does a survey in his locality about the preferences of people and needs to decide the brand for which he should place maximum order.

II. Suppose an N.G.O. wants traffic light to be put up at a crossing. They collect data of number of cars passing the crossing on each day and needs to convince the appropriate authority.

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Date: 19/01/2014

By: **geetanjali**

these are some questions from sample paper

or

website du.ac.in will also b very helpful

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Date: 13/05/2014

By: **Lalit kumar**

Answer this question.

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Date: 18/01/2014

By: **Bhumika **

### Subject: bma

What is the probability of picking out a prime number between 1 to 50 of form 2^n-1

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Date: 31/10/2013

By: **neeru**

How to calcuate the mode explain with example

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Date: 12/11/2013

By: **GARGI**

The mode is simply the number which appears most often.To find the mode first put the numbers in order, then count how many of each number.

Example: {19, 8, 29, 35, 19, 28, 15}

Arrange them in order: {8, 15, 19, 19, 28, 29, 35}

19 appears twice, all the rest appear only once, so 19 is the mode.

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Date: 23/10/2013

By: **SIMRAN KAUR **

### Subject: BMA

Explain different types of class interval

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Date: 12/11/2013

By: **GARGI**

Class intervals are of two types; exclusive and inclusive. The class interval that does not include upper class limit is called an exclusive type of class interval. The class interval that includes the upper class limit is called an inclusive type of class interval.

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Date: 23/10/2013

By: **SHEETAL**

### Subject: BMA

WHAT IS THE GUANTITATIVE AND DISCRETE DATA ?

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Date: 14/10/2013

By: **savita**

### Subject: bma

ye methodology kya hota h?

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Date: 15/10/2013

By: **Dr Anubha Bhargava**

Methodology are steps you have taken to reach to your conclusion. for eg You have collected data based on stratified sampling, no of students you have questioned, how did you collect data etc...

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Date: 13/10/2013

By: **savita**

### Subject: bma

mere project ka topic facts are scared hai.mujhe smjh ni aa rha ki pehle mai kis cheej ko btau fir kya btau matlab mujhe format bta do koi pls

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Date: 13/10/2013

By: **ashima**

order is

1 certificate

details of group

acknowledgement

table of content

objective

introduction

methodology

questionnaire

type of sampling

details of data

diagrammatic representation

analysis of data

conclusion

bibilography

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Date: 14/10/2013

By: **Srishti**

will this format be also work for stream wise sampling.

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Date: 14/10/2013

By: **savita**

ye methodology kya hota h?

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Date: 12/10/2013

By: **sarita**

### Subject: bma

my project is data collection using smart phone please suggest how to prepare this topic please revert as soon as possible its urgent

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Date: 13/10/2013

By: **kanika**

u can make questionnaire on it and show ur data through pie charts histograms.and then analysis of data.

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Date: 08/10/2013

By: **deepika**

### Subject: bma

i want to make my project on chapter 2.pls give me some hints that how i can make a project on that topic.also if u give me some links so plz help me.

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Date: 08/10/2013

By: **sneha**

Make project on how to collect data and how appropriate sampling is important in different kind of data. In youtube search for project on data collection and sampling..

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Date: 08/10/2013

By: **deepika**

### Subject: bma

i want to make my project on chapter 2.pls give me some hints that how i can make a project on that topic.also if u give me some links so plz help me.

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Date: 06/10/2013

By: **monika**

### Subject: bma

suggust me a topic 4 my project mmm totally confused

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Date: 07/10/2013

By: **nisha**

you can take library facilities, migrants from different states to delhi, branded clothe and their popularity, online shopping success rate

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Date: 05/10/2013

By: **monika**

### Subject: bma

can any1 tell me what is data

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Date: 06/10/2013

By: **YUVIKA**

Data are values of qualitative or quantitative variables, belonging to a set of items.

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Date: 06/10/2013

By: **nisha**

Data can also b viewed as collection of values. Eg price of onion during last one month

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Date: 23/09/2013

By: **namita**

### Subject: bma

how sherlock holmes decode the dancing men figure?

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Date: 29/09/2013

By: **bharti**

it is to understand by seeing the video.

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Date: 29/09/2013

By: **abc**

you Should watch Movie and video to jugde

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Date: 22/09/2013

By: **poonam kumari**

solutions of comlex number exercise of TITU ANDREESCU and DORIN ANDRICA BOOK

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Date: 23/09/2013

By: **YUVIKA**

Send ur e mail address

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Date: 14/09/2013

By: **monika**

Can smbdy tell me how to do data analysis.ihv got a question filled by 20 people.

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Date: 14/09/2013

By: **Yuvika**

Firstly, u have to find ur objective that what u want to conclude. Then read out the ans and represent it in the data form.

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Date: 13/09/2013

By: **monika**

### Subject: bma

plz tell me the chapter which come in 1 sem

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Date: 13/09/2013

By: **YUVIKA**

PLZ CHECK OUT THE SYLLABUS SECTION IN THE HOMEPAGE.

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Date: 08/09/2013

By: **shreya**

I am making a questionnaire on library facilities. can I get some opinion on types of question I should include.

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Date: 08/09/2013

By: **Sonal**

What is the objective of your questionnaire

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Date: 09/09/2013

By: **shreya**

to survey that how the young generation is using the library i mean in the electronic form or in the regular way.

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Date: 09/09/2013

By: **sonal**

check this website- learnhigher.ac.uk

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Date: 09/09/2013

By: **YUVIKA**

you can have this basic questions-

1. do you use library

2. how often do you use library

3. what kind of books do you look for- syllabus, magazines, novels, etc

4. what do you prefer more- e-books or the real books

5. do you get it issued or read it in the library

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Date: 04/09/2013

By: **sheenam**

### Subject: BMA

is there any other method to find the prime no. execpt for sieve method??

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Date: 05/09/2013

By: **madhu**

We can find prime number also with the help of Trial division,Fermat's Little Theorem and Miller Rabin method.Plz kindly search on net u will get all matter related to this.

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Date: 16/09/2013

By: **umesh bhagat**

It is not the precise method but sometime it can be followed...........if any number is dividing by 2 nd leaving remainder 1 thn that number will be prime number .....according to mine experience.

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Date: 04/09/2013

By: **Mahima**

n^2+n+14, find where it breaks?

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Date: 09/09/2013

By: **YUVIKA**

THE FORMULA IS n^2+n+17. it breaks in 16.

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Date: 09/09/2013

By: **shweta**

is it necessary to have 17 in the end ????

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Date: 09/09/2013

By: **YUVIKA**

no the formula is n^2+n+p where p is the prime no. and n is the natural no.

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Date: 04/09/2013

By: **madhu**

### Subject: bma

Do u think a polynomial of the form n^2+n+p where p is a prime no. will generate primes?

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Date: 04/09/2013

By: **madhu**

not for all values of n and p it satisfies.i.e when n=1,p=3 we get 5 which is prime but when n=12,p=1,we get 169 which is not prime.

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Date: 04/09/2013

By: **jaya**

### Subject: bma

what is gcd?

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Date: 04/09/2013

By: **madhu**

The greatest number that divides two numbers completely is called gcd(greatest common divisor).

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Date: 04/09/2013

By: **preeti**

### Subject: bma

what is goldbach conjecture?

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Date: 04/09/2013

By: **madhu**

It states that any even number greater than 2 can be expressed as a sum of two prime numbers.

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Date: 25/08/2013

By: **SHEETAL**

### Subject: BMA

Ramanujan gives a prime number theory in english and hindi then which alphabet of english is used mostly

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Date: 26/08/2013

By: **naina**

alphabet e

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Date: 16/09/2013

By: **umesh bhagat**

What the heck you don't know.......how stupid you are ........x is

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Date: 25/08/2013

By: **SHEETAL**

### Subject: BMA

AB=i where A is a matrix 2/2 and i is a identity matrix then find the value of B without calculate

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Date: 27/08/2013

By: **sneha**

matrix B is inverse of matrix A

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Date: 25/08/2013

By: **SHEETAL**

### Subject: BMA

define BARTND'S POSTULATE

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Date: 27/08/2013

By: **madhu**

For all n >0 there is a prime p such that n < p<2 n

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Date: 25/08/2013

By: **SHEETAL**

### Subject: BMA

6n-1 and 6n+1gives a prime number but where it breaks .

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Date: 04/09/2013

By: **santosh**

the system 6n-1 at n=6 and 6n+1 at n=4 will be braks

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Date: 23/08/2013

By: **Simran kaur**

### Subject: bma

Find numbers which are prime also in reverse order?

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Date: 23/08/2013

By: **simran**

No. are

17,71,37,73,79,97,149,941,337,733,133,331,199,991,179,971

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Date: 23/08/2013

By: **SHEETAL**

### Subject: BMA

what is the interesting story of prime number 3. explain deeply.

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Date: 24/08/2013

By: **richa**

1) 3 is approx. pi (actually closer to 3.14)

2) 3 is the first odd prime number and second smallest prime number

3) 3 non-collinear points determine a plane and a circle.

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Date: 23/08/2013

By: **SHEETAL**

### Subject: BMA

1 to 1000 how many prime numbers whose reverse order is also a prime number.

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Date: 04/09/2013

By: **jyoti**

101,103,157,37,13,17

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Date: 23/08/2013

By: **SHETAL**

### Subject: BMA

WRITE FIVE PRIME NUMBERS WHOSE SUM IS ALSO PRIME .

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Date: 23/08/2013

By: **mahima**

The five prime no. whose sum is also prime are:-

23,11,101,43,29

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Date: 23/08/2013

By: **aditi**

### Subject: bma

what are relative prime numbers??

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Date: 27/08/2013

By: **anisha**

The numbers are relatively prime when they have no common factor other than 1

For eg: 7 & 20 are relatively prime as they have only 1 as the common factor

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Date: 23/08/2013

By: **antra**

### Subject: bma

which are Mersenne primes??

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Date: 08/09/2013

By: **Sakshi**

Mersenne prime is a prime number of the form Mn=2^n -1. If n is a composite number, then so is 2^n-1, therefore, this definition is now written as 2^p-1, where p is assumed prime.

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Date: 23/08/2013

By: **aanchal**

### Subject: bma

what does Goldbach conjecture states??

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Date: 24/08/2013

By: **anisha**

Any prime number greater than 2 can be expressed as a sum of 2 prime numbers is known as goldbach conjectures

For example: 12 is the sum of two prime numbers i.e. 5+7 and they both are prime numbers

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Date: 22/08/2013

By: **mahima**

### Subject: BMA

Find a prime no. whose mirror image is same?

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Date: 22/08/2013

By: **sheenam**

11

101

111 and so on

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Date: 22/08/2013

By: **deepika**

### Subject: bma

what is identity matrix?

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Date: 22/08/2013

By: **kanika**

In identity matrix the diagonal elements are always equal to 1 & the non diagonal elements are equal to 0.

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Date: 22/08/2013

By: **shubhagi**

### Subject: bma

interesting facts about the prime number 2??

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Date: 22/08/2013

By: **madhu**

2 is the only prime no. that gives same no. when it is added or multiplied by itself.

i.e 2+2=4

2x2=4

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Date: 22/08/2013

By: **ritu**

### Subject: bma

when does the patren n^2+n+17 is brake

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Date: 22/08/2013

By: **santosh**

it breaks at 16.......

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Date: 22/08/2013

By: **radha**

### Subject: bma

what is sieve method??????

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Date: 22/08/2013

By: **madhu**

seive method was given by Eratosthenes for getting the prime numbers.In this method multiples of other numbers are canceled out and only prime no. are left.

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Date: 22/08/2013

By: **sakshi**

### Subject: BMA

Facts about prime no 23

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Date: 04/09/2013

By: **jyoti**

23 is the no. whose sum gives a prime no. is 5

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Date: 22/08/2013

By: **sneha**

### Subject: bma

What is Fermet's rule ?

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Date: 22/08/2013

By: **Sakshi**

According to Fermet's rule :

F=2^(2^n)+1 ,where n denotes natural numbers

It is a rule for finding prime numbers.

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Date: 22/08/2013

By: **shruti**

### Subject: bma

what are cousin primes?

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Date: 22/08/2013

By: **gunjan**

cousin prime are those which are differ by 4

for ex.

p and p+4=3 and 3+4 ,where p is a prime number.

13 and 17 are also cousin prime numbers.

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Date: 22/08/2013

By: **madhu**

the numbers of the form,(p,p+4)where p is any prime no. are called cousin primes.

ex.(3,7)

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Date: 22/08/2013

By: **deep**

### Subject: bma

n^2,(n+1)^2 where is not getting a prime number

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Date: 09/09/2013

By: **Shruti**

There is a prime number always between the numbers n^2 and (n+1)^2

Eg: n=1 n^2= 1

and (n+1)^2= 4

Between 1 and 4 , we have 2, 3 as prime

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Date: 22/08/2013

By: **Rishuka**

### Subject: bma

why prime numbrs are important

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Date: 24/08/2013

By: **shivangi**

prime numbers are the superstars of mathematics because they are so important. Mathematicians describe prime numbers as the foundation of number theory.

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Date: 09/09/2013

By: **Dr Anubha Bhargava**

Prime numbers are extensively used in cryptography. That's the reason they hold an importance in real life.

Not because they are the super stars....

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Date: 22/08/2013

By: **kashish**

### Subject: bma

what are twin primes ?

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Date: 22/08/2013

By: **kanika**

Any pair of prime numbers which differ by 2 are known as twin primes .

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Date: 19/08/2013

By: **ridhi**

### Subject: data

What is primary data?

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Date: 19/08/2013

By: **sonia**

Primary data is also known as first hand data...The data we collect ourselves and record it is known as primary data.........

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Date: 19/08/2013

By: **Shatakshi**

### Subject: BMA

What is the use of studing bma ?????

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Date: 09/09/2013

By: **yuvika**

come to the orientation program tomorrow at 10: 50 in the seminar room.

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Date: 19/08/2013

By: **Sofia**

What is the largest prime number in the world ?????

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Date: 19/08/2013

By: **Sonam**

January 25th 2013 – largest prime number having 17,425,170 digits was discovered by Dr Curtis Cooper. It earned him a whopping cash amount of $3000.

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Date: 19/08/2013

By: **antra**

what is the use of RSA Algorithm?????

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Date: 19/08/2013

By: **Yuvika**

RSA Algorithm is use to send the secret messae to someone.

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Date: 18/08/2013

By: **nisha**

### Subject: bma

Can somebody tell me the relevent site to understand Ramanujans prime.

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Date: 09/09/2013

By: **kanika**

youtube.com

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Date: 13/08/2013

By: **charu**

### Subject: bma

Plz tell the site to download bma syllabus

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Date: 16/08/2013

By: **Yuvika**

www.du.ac.in

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Date: 13/08/2013

By: **kiriti**

what is primary data? cn some one give real life example.

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Date: 13/08/2013

By: **YUVIKA**

DATA OBSERVED OR COLLECTED DIRECTLY FROM FIRST-HAND EXPERIENCE IS CALLED PRIMARY DATA. EXAMPLE: ESTIMATING POPULATION, TEMPERATURES, ETC.

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Date: 13/08/2013

By: **kirti**

Thanks.it helped

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