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If A+B+C= pi and cos A+cos B+cos C=0=si...

`If A+B+C= pi and` `cos A+cos B+cos C=0=sin A+sin B+sin C` ,
then `sin 3A+sin 3B+sin 3C =`

A

0

B

1

C

2

D

3

Text Solution

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The correct Answer is:
A
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