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The trigonometric functions are $\"\"$ and $\"\"$ .

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Consider $\"\"$ .

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Apply reciprocal identity : $\"\"$ .

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$\"\"$

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Pythagorean identity : $\"\"$ .

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$\"\"$

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Quotient identity : $\"\"$ .

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$\"\"$ .

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Thus, $\"\"$ .

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Consider $\"\"$ .

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Apply reciprocal identity : $\"\"$ .

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$\"\"$

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Pythagorean identity : $\"\"$ .

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$\"\"$

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Quotient identity : $\"\"$ .

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$\"\"$ .

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Thus, $\"\"$ .

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The identities are $\"\"$ and $\"\"$ .