Trigonometry Examples

Find the Inverse y = log of x+4
Interchange the variables.
Solve for .
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Rewrite the equation as .
Rewrite in exponential form using the definition of a logarithm. If and are positive real numbers and , then is equivalent to .
Solve for
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Rewrite the equation as .
Subtract from both sides of the equation.
Solve for and replace with .
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Replace the with to show the final answer.
Set up the composite result function.
Evaluate by substituting in the value of into .
Exponentiation and log are inverse functions.
Combine the opposite terms in .
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Subtract from .
Add and .
Since , is the inverse of .
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