How does that A S T C thing go? trig?

Which quadrants stand for which trig ratios, where they are positive at? How does that A S T C thing go?

2 Answers

  • Ed I
    Lv 7
    9 years ago
    Favorite Answer

    There are many versions, among which are....

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    All functions are positive in Quadrant I

    sin (and csc) in Quadrant II

    tan (and cot) in Quadrant III

    cos (and sec) in Quadrant IV

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  • 9 years ago

    I use "All Star Trig Class"

    This means that in Quadrant I "all" the sine, tan and cos are positive

    In Quadrant II "star" only sine is positive

    In Quadrant III "trig" only tan is positive

    In Quadrant IV "class" only cos is positive

    Check out this note page:

    Hope that helps...good luck!

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