# Calculus Examples

Check if Differentiable Over an Interval
,
Find the derivative.
Find the first derivative.
Rewrite as .
Differentiate using the Power Rule which states that is where .
Rewrite the expression using the negative exponent rule .
The first derivative of with respect to is .
Find if the derivative is continuous on .
To find whether the function is continuous on or not, find the domain of .
Set the denominator in equal to to find where the expression is undefined.
Solve for .
Take the root of both sides of the to eliminate the exponent on the left side.
The complete solution is the result of both the positive and negative portions of the solution.
Simplify the right side of the equation.
Rewrite as .
Pull terms out from under the radical.
The absolute value is the distance between a number and zero. The distance between and is .
is equal to .
The domain is all values of that make the expression defined.
Interval Notation:
Set-Builder Notation:
Interval Notation:
Set-Builder Notation:
is not continuous on because is not in the domain of .
The function is not continuous.
The function is not continuous.
The function is not differentiable on because the derivative is not continuous on .
The function is not differentiable.