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2sin^2x+sin^22x=2,-piltxltpi then x equa...

2sin^2x+sin^22x=2,-piltxltpi` then x equals (A) `+- pi/2` (B) `+- pi/4` (C) `+-(3pi)/4` (D) none of these

A

`sqrt(10+2sqrt(5))/(4)`

B

`(sqrt(5)-1)/(4)`

C

`sqrt(5+1)/(4)`

D

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

Text Solution

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The correct Answer is:
a,b,c,d
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