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Date: 17/08/2015

By: preeti

Subject: Re: algebra

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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