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Using the unit circle determine the sine cosine and the tangent functions of the angle -pi/6
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Using the unit circle determine the sine cosine and the tangent functions of the angle -pi/6

User Stanleyerror
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3 votes
This angle is in the 4th segment so only the cosine is positive

cos pi/6 = sqrt3/2 os cos -pi/6 = sqrt3/2 also

sin -pi/6 = -0.5

tan -pi/6 = -1 / sqrt3 = - sqrt3/3
User Duana
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