If sin 0 = - and 270º < 0< 360°, what is cos 0?

asked Oct 11, 2021 138k views

5 votes

If sin 0 = -
and 270º < 0< 360°, what is cos 0?

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4 votes

Answer:

cos(θ) > 0

Explanation:

In Quadrant IV, the cosine is positive.

In the attached, trig functions not listed are negative.

Miguel Barra answered Oct 15, 2021