Algebra 2

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Find the values of the six trigonometric functions for ∠A in standard position determined by the point (63, 280). Enter your answers as fractions.
sin A
cos A
tan A
csc A
sec A
cot A

  • Algebra 2 -

    clearly your point is in the first quadrant, so all trig ratios will be positive.
    from (63,280)
    x = 63, y = 280
    r^2 = x^2 + y^2 = 63^2+280^2 = 82930
    r = √82930

    You should know the trig ratios in terms of
    x, y and r
    e.g.
    tan A = y/x = 280/63 = 40/9
    sec A = r/x = √82930/63
    etc.

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