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Solve 2 sin theta + 1=0....

Solve `2 sin theta + 1=0`.

Text Solution

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The correct Answer is:
`theta=n pi +(-1)^(n+1) pi/6, n in Z`
`2 sin theta+1=0`
`rArr sin theta =-1/2 = sin ((-pi)/6)`
`rArr theta=n pi +(-1)^(n) ((-pi)/6), n in Z`
`=n pi +(-1)^(n+1) pi/6, n in Z`
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