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Math Help - trigonometic funtions

  1. #1
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    trigonometic funtions

    how do you Find the exact values of the six trigonometric functions of a
    120 angle

    how do you Find the measurement of the reference angle of an angle measuring 7 π /4

    If you are Given that sin θ = -1/2 for an angle in Quadrant III how do you find the exact value of sec θ

    how do you Find the values of the six trigonometric functions of the angle in standard position with the terminal side passing through the point P(-4, 3)
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  2. #2
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    Remember that Sin = Opp/Hyp, Cos = Adj/Hyp and Tan = Opp/Adj

    Then use pythagorean triples to give you the exact values.
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  3. #3
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    Quote Originally Posted by sean.1986 View Post
    Remember that Sin = Opp/Hyp, Cos = Adj/Hyp and Tan = Opp/Adj

    Then use pythagorean triples to give you the exact values.
    wat is pythagorean triples andhow do i get the opp the hp and the adj
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  4. #4
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    For example, you know that Sin120 = Sin 60

    In the right-angled triangle with a 60 degree angle, the sides are 1, 2 and root 3.

    Opposite the 60 degree angle is the root 3 side and the hypoteneuse is 2.

    So as Sin = Opp/Hyp, Sin 60 = root(3)/2
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