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? asked in Science & MathematicsMathematics · 4 years ago

Trig problem?

The point P(-4,-2) is on the terminal side of angle theta in standard position with 0< or equal to theta < 360

Use definitions of trigonometric functions of any angle to find cos sin and tan

1 Answer

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  • Fazaldin A
    Lv 7
    4 years ago

    For point P(-4,-2), angle Ɵ = 180+arcsin(2/4) = 180+30 = 210 degrees.

    So,

    sinƟ = sin(210) = -1/2,

    cosƟ = cos(210) = -√ 3/2

    and

    tanƟ = tan(210) = +1/√ 3.

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