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Let P(k)=(1+cos""(pi)/(4k))(1+cos""((2k-...

Let `P(k)=(1+cos""(pi)/(4k))(1+cos""((2k-1)pi)/(4k))(1+cos""((2k+1pi))/(4k))(1+cos""((4k-1)pi)/(4k))` Then

A

`P(3)=1/16`

B

`p(4)=(2-sqrt2)/16`

C

`P(5)=(3-sqrt5)/32`

D

`P(6)=(2-sqrt3)/16`

Text Solution

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The correct Answer is:
A, B, C, D
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