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The possible values of theta in (0, pi) ...

The possible values of `theta in (0, pi)` such that `sin(theta)+sin(4theta)+sin(7theta) = 0` are:

A

`(2pi)/(9), (pi)/(4), (4pi)/(9) ,(pi)/(2) , (3pi)/(4) , (8pi)/(9)`

B

`(pi)/(4) ,(5pi)/(12) , (pi)/(2) ,(2pi)/(3) , (3pi)/(4) , (8pi)/(9)`

C

`(2pi)/(9) , (pi)/(4) , (pi)/(2) , (2pi)/(3),(3pi)/(4) , (35pi)/(36)`

D

`(2pi)/(9), (pi)/(4) , (pi)/(2) , (2pi)/(3) , (3pi)/(4) , (8pi)/(9)`

Text Solution

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The correct Answer is:
A
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