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Let f(theta)=(1)/(1+(cottheta)^(x))andS=...

Let `f(theta)=(1)/(1+(cottheta)^(x))andS=sum_(theta=1^(o))^(89^(@))f(theta)`. Then the value of `sqrt(2S-8)` =

A

8

B

9

C

10

D

12

Text Solution

Verified by Experts

The correct Answer is:
B
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