is the derivative of at .
Steps
Step 1 :Let , then the derivative is given by using the chain rule.
Step 2 :Substitute into the equation to get .
Step 3 :From the table, we know that and . So, substitute these values into the equation to get .
Step 4 :Again from the table, we know that . So, substitute this value into the equation to get .
Step 5 : is the derivative of at .