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March 30, 2017

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find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3

  • trig - ,

    make a sketch in III
    y = -5, r = 13 , then
    x^2 + (-5)^2 = 169
    x = -12 in III

    sinØ = -5/13, cscØ = -13/5
    cosØ = -12/13, secØ = -13/12
    tanØ = -5/-12 = 5/12
    cotØ = 12/5

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