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The expression (tan^(4)x + 2tan^2x+1)cos...

The expression `(tan^(4)x + 2tan^2x+1)cos^(2)x, ` when `x = pi//12 ` , can be equal to

A

`4(2-sqrt3)`

B

`4(sqrt2+1)`

C

`16 cos^2 pi//12`

D

`16 sin^(2) pi//12`

Text Solution

Verified by Experts

The correct Answer is:
A, D
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