1.

If e^((sin^(2)+sin^(4)x+sin^(6)x+...oo)log2)=8and0ltxlt(pi)/(2) then (cos x)/(cosx + sin x) =

Answer»

`(sqrt(3)+1)/(2)`
`(sqrt(3)-1)/(2)`
`(2)/(sqrt(3)+1)`
`(2)/(sqrt(3)-1)`

ANSWER :B


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