Q. 14

If 16Cr = 16Cr + 2, find rC4.

Answer :

We know that if , then one of the following conditions need to be satisfied:


iii. p = q


iv. n = p + q


From the problem we can say that,


r≠r + 2


So, the condition(ii) must be satisfied,


16 = r + r + 2


2r = 14



r = 7.


The value of r is 7.


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