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Math Help - more intros to circular functions.

  1. #1
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    more intros to circular functions.

    determine the value of the following if 0 is less than or equal to theta and theta is less than 2 pie.

    - sin theta= -1



    -sec theta= -2root3/3
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  2. #2
    Senior Member nikhil's Avatar
    Joined
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    Lightbulb Here it is

    1)-sinx=-1
    sinx=1
    x=pi/2
    2)-secx=-[2((3)^1/2)]/3
    secx=2/3^1/2
    cosx=[3^1/2]/2
    cosx=cos(pi/6)
    x=pi/6,11pi/6
    NOTE:
    sinA=sinB THEN
    A=n(pi)+((-1)^n)B
    n is any integer.
    cosA=cosB THEN
    A=2n(pi)+-B
    +-=plus minus
    n is any integer
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