<Li> Integral (improper) </Li> <Tr> <Th> Integration by </Th> </Tr> <Tr> <Td> <Ul> <Li> Parts </Li> <Li> Discs </Li> <Li> Cylindrical shells </Li> <Li> Substitution (trigonometric) </Li> <Li> Partial fractions </Li> <Li> Order </Li> <Li> Reduction formulae </Li> </Ul> </Td> </Tr> <Ul> <Li> Parts </Li> <Li> Discs </Li> <Li> Cylindrical shells </Li> <Li> Substitution (trigonometric) </Li> <Li> Partial fractions </Li> <Li> Order </Li> <Li> Reduction formulae </Li> </Ul>

When does the partial derivative in x equal the total derivative