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In Exercises $7-12,$ one of $\sin x, \cos x,$ and $\tan x$ is given. Find theother two if $x$ lies in the specified interval.$$\cos x=\frac{1}{3}, \quad x \in\left[-\frac{\pi}{2}, 0\right]$$
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This means that $x$ is in the fourth quadrant where cosine is positive and sine is negative. Show more…
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