3(sin x- cos x )^(4) + 6(sin x+ cos x )^...

`3(sin x- cos x )^(4) + 6(sin x+ cos x )^(2) +4 (sin ^(6) x+ cos ^(6) x)=`

A

9

B

10

C

13

D

6

Verified by Experts

The correct Answer is:

C

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