$\"\"$

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Find the value of $\"\"$ .

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The expression is $\"\"$ .

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In general, if an angle whose measure is greater than $\"\"$ has a reference angle of $\"\"$ , $\"\"$ , or $\"\"$ , or if it is a quadrantal angle, first find its ordered pair, after find the values of any of the trigonometric functions of the angle. Again, determine the reference angle first.

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$\"\"$ is a full rotation of $\"\"$ , plus an additional $\"\"$ .

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Therefore the angle is coterminal with $\"\"$ , and so it shares the same ordered pair, $\"\"$ .

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The sine value is the $\"\"$ - coordinate.

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Thus, the value of $\"\"$ is $\"\"$ .

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$\"\"$

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Find the value of $\"\"$ .

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The expression is $\"\"$ .

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$\"\"$ is in the fourth quadrant, and has a reference angle of $\"\"$ .

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That is, this angle is coterminal with $\"\"$ .

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Therefore the ordered pair is $\"\"$ .

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The sine value is the $\"\"$ - coordinate.

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Thus, the value of $\"\"$ is $\"\"$ .

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$\"\"$

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The value of $\"\"$ is $\"\"$ .

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The value of $\"\"$ is $\"\"$ .