If and lies in Quadrant II

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

Problem

If

\sin\theta=\dfrac35

and

\theta

lies in Quadrant II, find

\cos\theta

. (a)

-\dfrac{16}{25}

(b)

-\dfrac45

(c)

\dfrac45

(d)

-\dfrac35

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