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X=30 degrees or  \pi /6
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Sorry, Josh, but it isnt the complete solution, U need to give ans of all possible cases
Like , isnt sin(150) a solution
sinx=n \pi + (-1)^{n}  \pi /6   
This is the principle solution

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Are u joking
Am I?
How can i know
LOL, Ur solution seems correct, It is, I think
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