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sintheta+sin7theta=sin4theta...

`sintheta+sin7theta=sin4theta`

A

`(pi)/(9),(pi)/(4)`

B

`(pi)/(3),(pi)/(9)`

C

`(pi)/(6),(pi)/(9)`

D

`(pi)/(3),(pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
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