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If sin ^(2) x + (1)/(4) sin^(2) 3x = sin...

If `sin ^(2) x + (1)/(4) sin^(2) 3x = sin x sin^(2) 3 x ` then x =

A

`(npi)/2, n in Z`

B

`2 pi +-(pi)/2, n in Z`

C

`n pi , n in Z`

D

`npi+(-1)^(n)(pi)/6, n in Z`

Text Solution

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The correct Answer is:
C, D
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