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Math Help - Basic trig problem

  1. #1
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    Oct 2009
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    Basic trig problem

    I missed some school due to the flu, so I missed the concept completely.

    My question:

    In the equation sinΘ=0.85 (In degrees, 0≤Θ≤360), how do I solve for theta?
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  2. #2
    Junior Member
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    Sep 2009
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    Are you allowed to use a calculator? If so, there's a sin-1 function. You'd just sin-1(.85) and get your result. Make sure you're in degrees mode on the calculator.

    If you're not supposed to use a calculator, I'm sorry, I don't know.
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  3. #3
    Member
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    Quote Originally Posted by SlightlyChaotic View Post
    I missed some school due to the flu, so I missed the concept completely.

    My question:

    In the equation sinΘ=0.85 (In degrees, 0≤Θ≤360), how do I solve for theta?
    From a calculator, \Theta = 58.2^0 (correct to 1 decimal place). From symmetry of the unit circle another solution is \Theta = 180^0 - 58.2^0 = ....
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