How do you use Part 1 of the fundamental theorem of calculus to find the derivative of:
g(x)=integral of (9*cos(t))/(t) from 3 to x^(1/2)?
this page may help a bit
you may also want to look up "the second fundamental theorem of calculus" on wikipedia or some other source
........by the second fundamental theorem of calculus
EDIT: Ah, beaten by the great qbkr21!