Binomial Theorem Part 3

Section: Mathematics

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Question : 6 of 45

Marks: +1, -0

Let Cr denote the coefficient of xr in the binomial expansion of (1+x)n,n∈N,0≤r≤n . If Pn=C0−C1+‌

22

3

C2−‌

23

4

C3+......+‌

(−2)n

n+1

Cn, then the value of

25

∑

n=1

‌

1

P2n

equals.

[22 Jan 2026 Shift 2]

675
580
525
650

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