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    • Thread Starter
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    cot theta = -root3

    and theta is between 90 - 180

    find sin theta and cos theta

    i know cot theta can be set as 1/tan theta or cos theta / sin theta, but i have no idea how to get a single sin or cos

    Thanks
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    Cot theta = Costheta/Sintheta

    => Costheta/Sintheta=-rt3

    Damnit. I cba to use latex. >.>
    • TSR Group Staff
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    TSR Group Staff
    Take an equilateral triangle with sides of length two and split it in half. Work out the length of the remaining sides and that will give you the sine and cosine you require.
 
 
 
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