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Grade 9·10 problems·~13 min·Common Core Math - HS Functions·group·hsf-tf-c-8

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Procedures

If $\cos(\theta) = -\dfrac{2}{3}$ and $\theta$ is in Quadrant II, what is
$\sin(\theta)$ ?

$\dfrac{\sqrt{5}}{3}$

$-\dfrac{\sqrt{5}}{3}$

$\dfrac{1}{3}$

$-\dfrac{1}{3}$