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3(sinx-cosx)^4+6(sinx+cosx)^2+4(sin^6x+c...

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

A

1) 14

B

2) 11

C

3) 12

D

4) 13

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