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

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- TomVLv 75 months agoBest 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

- ComoLv 75 months ago
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sin 150° = sin 30° = 1/2

cos 150° = - cos 30° = - √3/2

tan 150° = - tan 30° = - 1/√3

- JLv 75 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]

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sorry about the latex, thought I was on quora