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Math Help - Calculate angle

  1. #1
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    Calculate angle

    sin(\theta ) cos( \theta) = 0,7

    What is the value of \theta ?
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  2. #2
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    e^(i*pi)'s Avatar
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    Quote Originally Posted by Apprentice123 View Post
    sin(\theta ) cos( \theta) = 0,7

    What is the value of \theta ?
    Use the identity sin \theta cos \theta = \frac{1}{2}sin(2\theta)
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  3. #3
    Super Member bigwave's Avatar
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    the solutions to this are imaginary

    sin^{-1}\left(1.4\right) is non real
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