Common Calculus Mistakes
Derivative of an Integral |

Some problems provide the opportunity for more than one mistake. The Goal
Find the derivative F'(x), where
The Mistakes
Find the mistakes:
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(Roll the mouse over the math to see a hint in red) A Correct Solution
(Roll the mouse over the area above to see the corrections in blue) Explanations By what is often called the Second Fundamental Theorem of Calculus, so all that needs to be done is to write down the integrand (the function inside the integral) with the variable t replaced by x. All of the attempted solutions are pure fiction, although the only error in Mistake 4 is that it uses the incorrect variable.
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