How to tell if the sine, cosine and tangent of a angle are negative or positive?

Question

Mathematics

Fuentes

12 October, 20:29

How to tell if the sine, cosine and tangent of a angle are negative or positive?

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Corey Huerta · Answer 1

Hello:

1) the 1 quadrant : the sine, cosine and tangent are positives

2) the 2 quadrant : the sine is positive but cosine and tangent are negatives

3) the 3 quadrant : the tangent is positive but cosine and sine are negatives

4) the 4 quadrant : the cosine is positive but tangent and sine are negatives