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If k=sin^(6)c+cos^(6)x, then k belongs t...

If `k=sin^(6)c+cos^(6)x,` then k belongs to the interval

A

`[ ( 7 )/( 8 ) , ( 5)/( 4) ]`

B

`[ ( 1)/( 2) , ( 5)/( 8 )]`

C

`[ ( 1)/( 4), 1]`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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