$\"\"$

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The trigonometric expression is $\"\"$ .

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Given functions are $\"\"$ and $\"\"$

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$\"\"$

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Substitute given functions $\"\"$ and $\"\"$

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$\"\"$

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Let $\"\"$ then $\"\"$ ,

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$\"\"$

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$\"\"$

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From Pythagorean identity: $\"italic$ .

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$\"italic$ (Subtract " $\"italic$ " from each side)

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$\"italic$ (Simplify)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Simplify) \ \

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$\"\"$ (Simplify) \ \

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$\"\"$ (Simplify) \ \

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$\"\"$

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$\"\"$

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The solution of expression $\"\"$ is $\"\"$ \ \