Let f be a Riemann integrable function on an interval
If the variable x appears at the lower limit of the integral and the
upper limit is a constant, we switch the limits using the usual formula
(the minus sign appears in front of the integral).
If the variable x appears at both limits of the integral, we split the
integral at some constant and differentiate each part separately according to
this formula and the trick for variable in lower limit.
Example: For x from
Find the derivative of F.
Solution:
Gamma and Beta functions
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