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C0 – C1 + C2 – C3 + C4 – …...(-1)^n Cn = 0 where C denotes coefficient of (1+x)^n. In proving this we assume x= – 1.Why??

C0 – C1 + C2 –  C3 + C4 – …...(-1)^n Cn = 0 
where C denotes coefficient of (1+x)^n. In proving this we assume  x= – 1.Why?? 

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1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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