trig

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(a) sketch an angle A in standard position whose terminal ray passses through the point (1,-4)

(b) Find the exact value of the six trigonometric functions of A,

(c) Let B be the reference angle of A. Find a point on the terminal rsy of B in standard position and add B to your sketch.

  • trig -

    construct your right-angled triangle by drawing a perpendicular to the x-axis from (1,-4)

    then r^2 = x^2 + y^2 = 1 + 16
    r = √17

    b)
    sinA = -4/√17
    cscA = -√17/4

    cosA = 1/√17
    secA = √17

    tanA = -4/1 = -4
    cotA = -1/4

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