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Math Help - Values of the function

  1. #1
    ADY
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    Values of the function

    Can you help me find the values of sin,cos & tan of (\frac{1}{3} \pi) and (\frac{1}{6} \pi) to find exact values of:


    -  sin (\frac{1}{6} \pi)

    -  cos (\frac{5}{3} \pi)

    -  tan (\frac{4}{3} \pi)

    Thank you
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  2. #2
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    Quote Originally Posted by ADY View Post
    Can you help me find the values of sin,cos & tan of (\frac{1}{3} \pi) and (\frac{1}{6} \pi) to find exact values of:


    -  sin (\frac{1}{6} \pi)

    -  cos (\frac{5}{3} \pi)

    -  tan (\frac{4}{3} \pi)

    Thank you
    Think about a 90-60-30 right triangle for the first problem.
    What is the side measurement opposite of the angle pi/6(30 degrees)?

    For second problem, it is in the fourth quadrant. Draw a right triangle in the fourth quadrant and you will see the answer.

    Same for number three but its in the third quadrant.
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  3. #3
    ADY
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    Gosh - i'm going to need to look this stuff up again to remember the rules?

    Any other pointers?
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