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Let f(theta)=sintheta(sintheta+sin3theta...

Let `f(theta)=sintheta(sintheta+sin3theta),"then"f(theta)` :

A

`ge0` only where `thetage0`

B

`le0` for all `theta`

C

`ge0` for all real `theta`

D

`le0` only when `thetale0`

Text Solution

Verified by Experts

The correct Answer is:
C
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