किसी thetain((pi)/(4),(pi)/(2)), के लिए ...

किसी `thetain((pi)/(4),(pi)/(2))`, के लिए व्यंजक `3(sintheta-costheta)^(4)+6(sintheta+costheta)^(2)+4sin^(6)theta` बराबर है-

A

`13-4cos^(4)theta+2sin^(2)thetacos^(2)theta`

B

`13-4cos^(4)theta+6sin^(2)thetacos^(2)theta`

C

`13-4cos^(6)theta`

D

`13-4cos^(2)theta+6cos^(2)theta`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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