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Solve this question by using binomial theorem and it's rule only.

Solve this question by using binomial theorem and it's rule only.

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Grade:12

2 Answers

Sanyam Shah
54 Points
3 years ago
Answer: s=∑r/ncr
               Write it as : s=∑(n-r)/ncr
               Add both of them
               2s=∑n/ncr
               2s/n=∑1/ncr=An
               Therefore 2s/n is your answer
 Please approve it
Vikas TU
14149 Points
3 years ago

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