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If f(x) = cos x - cos^(2)x + cos^(3)x + ...

If `f(x) = cos x - cos^(2)x + cos^(3)x + …. to oo int f(x) dx =`

A

(tan)x/2

B

x + (tan) x/2

C

x- 1/2 (tan) x/2

D

x-(tan) x/2

Text Solution

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The correct Answer is:
D
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