Step 1:

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The function $\"\"$

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Change $\"\"$ to $\"\"$ .

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$\"\"$

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Interchange $\"\"$ and $\"\"$ .

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$\"\"$

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Solve for $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Change $\"\"$ to $\"\"$ .

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$\"\"$

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Step 2:

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .