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If sinx+sin4x+sin7x=0 and 0ltxltpi, then...

If `sinx+sin4x+sin7x=0 and 0ltxltpi,` then x=

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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