Anonymous
Anonymous asked in Science & MathematicsMathematics · 5 months ago

State the exact values of the three primary trigonometric ratios for 150°?

4 Answers

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  • TomV
    Lv 7
    5 months ago
    Best answer

    Reference angle for 150° is 30°

    sin(150°) = sin(30°) = 1/2

    cos(150°) = -cos(30°) = -√3/2

    tan(150°) = -tan(30°) = -√3/3

  • Como
    Lv 7
    5 months ago

    --

    sin 150° = sin 30° = 1/2

    cos 150° = - cos 30° = - √3/2

    tan 150° = - tan 30° = - 1/√3

  • J
    Lv 7
    5 months ago

    State the exact values of the three primary trigonometric ratios for 150°?

    Second quadrant.

    [math]\sin 150° = \sin 30° = \frac{1}{2}[/math]

    [math]\cos 150° = - \cos 30° = -\frac{\sqrt{3}{2}[/math]

    [math]\tan 150° = - \tan 30° = -\frac{1}{\sqrt{3}}[/math]

    • J
      Lv 7
      5 months agoReport

      sorry about the latex, thought I was on quora

  • Lôn
    Lv 7
    5 months ago

    Sin 150 = 0.5

    Cos 150 = - 0.8660

    Tan 150 = -0.5774

    • Lôn
      Lv 7
      5 months agoReport

      There is no point giving an answer to around 12 decimal places. 4 dps is the usual accepted accuracy.

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