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Calculus Examples
Step 1
Set as a function of .
Step 2
Step 2.1
Use to rewrite as .
Step 2.2
Multiply by by adding the exponents.
Step 2.2.1
Multiply by .
Step 2.2.1.1
Raise to the power of .
Step 2.2.1.2
Use the power rule to combine exponents.
Step 2.2.2
Write as a fraction with a common denominator.
Step 2.2.3
Combine the numerators over the common denominator.
Step 2.2.4
Add and .
Step 2.3
Differentiate using the Power Rule which states that is where .
Step 2.4
To write as a fraction with a common denominator, multiply by .
Step 2.5
Combine and .
Step 2.6
Combine the numerators over the common denominator.
Step 2.7
Simplify the numerator.
Step 2.7.1
Multiply by .
Step 2.7.2
Subtract from .
Step 2.8
Combine and .
Step 3
Step 3.1
Set the numerator equal to zero.
Step 3.2
Solve the equation for .
Step 3.2.1
Divide each term in by and simplify.
Step 3.2.1.1
Divide each term in by .
Step 3.2.1.2
Simplify the left side.
Step 3.2.1.2.1
Cancel the common factor.
Step 3.2.1.2.2
Divide by .
Step 3.2.1.3
Simplify the right side.
Step 3.2.1.3.1
Divide by .
Step 3.2.2
Raise each side of the equation to the power of to eliminate the fractional exponent on the left side.
Step 3.2.3
Simplify the exponent.
Step 3.2.3.1
Simplify the left side.
Step 3.2.3.1.1
Simplify .
Step 3.2.3.1.1.1
Multiply the exponents in .
Step 3.2.3.1.1.1.1
Apply the power rule and multiply exponents, .
Step 3.2.3.1.1.1.2
Cancel the common factor of .
Step 3.2.3.1.1.1.2.1
Cancel the common factor.
Step 3.2.3.1.1.1.2.2
Rewrite the expression.
Step 3.2.3.1.1.2
Simplify.
Step 3.2.3.2
Simplify the right side.
Step 3.2.3.2.1
Raising to any positive power yields .
Step 4
Step 4.1
Replace the variable with in the expression.
Step 4.2
Simplify the result.
Step 4.2.1
Remove parentheses.
Step 4.2.2
Rewrite as .
Step 4.2.3
Pull terms out from under the radical, assuming positive real numbers.
Step 4.2.4
Multiply by .
Step 4.2.5
The final answer is .
Step 5
The horizontal tangent line on function is .
Step 6