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Calculus Examples
Step 1
Write as an equation.
Step 2
Interchange the variables.
Step 3
Step 3.1
Rewrite the equation as .
Step 3.2
To remove the radical on the left side of the equation, square both sides of the equation.
Step 3.3
Simplify each side of the equation.
Step 3.3.1
Use to rewrite as .
Step 3.3.2
Simplify the left side.
Step 3.3.2.1
Simplify .
Step 3.3.2.1.1
Multiply the exponents in .
Step 3.3.2.1.1.1
Apply the power rule and multiply exponents, .
Step 3.3.2.1.1.2
Cancel the common factor of .
Step 3.3.2.1.1.2.1
Cancel the common factor.
Step 3.3.2.1.1.2.2
Rewrite the expression.
Step 3.3.2.1.2
Simplify.
Step 3.4
Solve for .
Step 3.4.1
Subtract from both sides of the equation.
Step 3.4.2
Divide each term in by and simplify.
Step 3.4.2.1
Divide each term in by .
Step 3.4.2.2
Simplify the left side.
Step 3.4.2.2.1
Cancel the common factor of .
Step 3.4.2.2.1.1
Cancel the common factor.
Step 3.4.2.2.1.2
Divide by .
Step 3.4.2.3
Simplify the right side.
Step 3.4.2.3.1
Simplify each term.
Step 3.4.2.3.1.1
Move the negative in front of the fraction.
Step 3.4.2.3.1.2
Dividing two negative values results in a positive value.
Step 4
Replace with to show the final answer.
Step 5
Step 5.1
To verify the inverse, check if and .
Step 5.2
Evaluate .
Step 5.2.1
Set up the composite result function.
Step 5.2.2
Evaluate by substituting in the value of into .
Step 5.2.3
Combine the numerators over the common denominator.
Step 5.2.4
Simplify each term.
Step 5.2.4.1
Rewrite as .
Step 5.2.4.1.1
Use to rewrite as .
Step 5.2.4.1.2
Apply the power rule and multiply exponents, .
Step 5.2.4.1.3
Combine and .
Step 5.2.4.1.4
Cancel the common factor of .
Step 5.2.4.1.4.1
Cancel the common factor.
Step 5.2.4.1.4.2
Rewrite the expression.
Step 5.2.4.1.5
Simplify.
Step 5.2.4.2
Apply the distributive property.
Step 5.2.4.3
Multiply by .
Step 5.2.4.4
Multiply by .
Step 5.2.5
Simplify terms.
Step 5.2.5.1
Combine the opposite terms in .
Step 5.2.5.1.1
Add and .
Step 5.2.5.1.2
Add and .
Step 5.2.5.2
Cancel the common factor of .
Step 5.2.5.2.1
Cancel the common factor.
Step 5.2.5.2.2
Divide by .
Step 5.3
Evaluate .
Step 5.3.1
Set up the composite result function.
Step 5.3.2
Evaluate by substituting in the value of into .
Step 5.3.3
Apply the distributive property.
Step 5.3.4
Cancel the common factor of .
Step 5.3.4.1
Move the leading negative in into the numerator.
Step 5.3.4.2
Factor out of .
Step 5.3.4.3
Cancel the common factor.
Step 5.3.4.4
Rewrite the expression.
Step 5.3.5
Multiply.
Step 5.3.5.1
Multiply by .
Step 5.3.5.2
Multiply by .
Step 5.3.6
Cancel the common factor of .
Step 5.3.6.1
Factor out of .
Step 5.3.6.2
Cancel the common factor.
Step 5.3.6.3
Rewrite the expression.
Step 5.3.7
Simplify by subtracting numbers.
Step 5.3.7.1
Subtract from .
Step 5.3.7.2
Add and .
Step 5.3.8
Pull terms out from under the radical, assuming positive real numbers.
Step 5.4
Since and , then is the inverse of .