Which of the following correctly gives the signs of and ?

MATHEMATICS · Single correct · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

Which of the following correctly gives the signs of sin⁡(−120∘)\sin(-120^{\circ}) and cos⁡(−120∘)\cos(-120^{\circ})? (a) sin⁡\sin positive, cos⁡\cos negative (b) sin⁡\sin negative, cos⁡\cos negative (c) sin⁡\sin positive, cos⁡\cos positive (d) sin⁡\sin negative, cos⁡\cos positive

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