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Math Help - rules for sin/cos/tan/csc/sec/cot on unit circle?

  1. #1
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    rules for sin/cos/tan/csc/sec/cot on unit circle?

    like csc/sec have to be greater than 1

    tan and cot can be any real number

    sin/cos must be between 0 and 1? huh?
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  2. #2
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    Quote Originally Posted by algebra2 View Post
    like csc/sec have to be greater than 1

    tan and cot can be any real number

    sin/cos must be between 0 and 1? huh?

    csc/sec can be 1 so that should be greater than or equal to 1.

    sin/cos must be between -1 and 1 (inclusive "between" so can be 1 and -1).

    RonL
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  3. #3
    GAMMA Mathematics
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    Quote Originally Posted by algebra2 View Post
    like csc/sec have to be greater than 1

    tan and cot can be any real number

    sin/cos must be between 0 and 1? huh?
    Remember ASTC

    1st quadrant: all of sine, cosine, and tangent are positive
    2nd quadrant: only sine is > 0
    3rd quadrant: only tangent is > 0
    4th quadrant: only cosine is > 0
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