$\"\"$

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Observe the figure :

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Length of the opposite side is $\"\"$ .

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Length of the hyptonuse is $\"\"$ .

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Find adjacent side :

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Apply Pythagorean theorem :

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$\"\"$

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Substiute the values in the formula :

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$\"\"$

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Simplify :

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$\"\"$

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$\"\"$

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Find the trigonometric functions.

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Substitute $\"\"$ , $\"\"$ and $\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$

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The exact vvalues of trigonometric functions are $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ .