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5-10.

Find all values of $x$ where $0 ≤ x ≤ 2\pi$ for the following equations.

$\csc x = −2$
Step (a):
$\frac{1}{\sin x}=-2$

$\operatorname { tan } x = - \frac { \sqrt { 3 } } { 3 }$
Hint (b):
What special angle is this?
More Help (b):
In what quadrants is tangent negative?

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