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  1. #1
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    trig

    Solution to this equation-------find x



    1/(2 sinx + 1) = 0.5


    answer is 139 ........but i don't know how u get it...plZZZ help
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  2. #2
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    Quote Originally Posted by hi00000 View Post
    Solution to this equation-------find x
    1
    (2 sinx + 1) = 0.5


    answer is 139 ........but i don't know how u get it...plZZZ help
    Is this \frac{1}{2\sin{x} + 1} = \frac{1}{2}?

    If so...

    2\sin{x} + 1 = 2

    2\sin{x} = 1

    \sin{x} = \frac{1}{2}.

    x = \left\{\frac{\pi}{6}, \frac{5\pi}{6}\right\} + 2\pi n, n\in \mathbf{Z}.
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