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If sin^(4)(x//3)+cos^(4)(x//3)gt1//2 the...

If `sin^(4)(x//3)+cos^(4)(x//3)gt1//2` then `x in `________

A

`R-{x//x=(3npi)/2+-(pi)/4, n in Z}`

B

`R-{x//x=(3npi)/2+-(pi)/2, n in Z}`

C

`R-{x//x=(3npi)/2+-(3pi)/4, n inZ}`

D

`R-{x//x=(3npi)/2+-(3pi)/2 , n in Z}`

Text Solution

Verified by Experts

The correct Answer is:
C
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