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If C represents coefficient of (1+x)^n, then ∑ r=0 n ∑ s =0 n (C r + C s )= 1)(n+1)2^n 2)(n+1)(2)^(n+1) 3)n(2)^n 4)n(2)^(n+1) Show the steps

If C represents coefficient of (1+x)^n, then ∑r=0n   s=0n (Cr + C)=
1)(n+1)2^n
2)(n+1)(2)^(n+1)
3)n(2)^n
4)n(2)^(n+1)
Show the steps
 

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1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
​Dear student

C represents the coefficient of (1+x)^n

Does C represent the coefficient of every different term

Please write the Question in a standard form or attach an image of the question

Regards

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