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If the general solution of sin x + 3 s...

If the general solution of
`sin x + 3 sin 3x + sin 5 x = 0 " is " x = y` then the set of all values of cos y is

A

`{-1,-(sqrt(3))/(2),(sqrt(3))/(2),1}`

B

`{-1,(1)/(2),1}`

C

`{-(sqrt(3))/(2),0,1,(sqrt(3))/(2)}`

D

`{-1,-(1)/(2),(1)/(2),1}`

Text Solution

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The correct Answer is:
D
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