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Find the value of underset(0leiltjlen)(s...

Find the value of `underset(0leiltjlen)(sumsum)(.^(n)C_(i)+.^(n)C_(j))`.

A

`n*2^(n-1)`

B

`(n+1)*2^(n+1)`

C

`(n+1)*2^(n)`

D

`(n+1)*2^(n-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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VMC MODULES ENGLISH-BINOMIAL THEOREM-LEVEL 2
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  17. Prove that sum(r=0)^ssum(s=1)^n^n Cs^n Cr=3^n-1.

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