The function is and the inerval is
.
Average value of the function on
is defined as
.
Here .
Average value of is
.
Consider .
Differentiate on each side with respect to .
.
Change of integral limits:
\Lower limit: If then
.
Upper limit: If then
.
Substitute ,
and change of integral limits in
.
.
Average value of the function on
is
.
Average value of the function on
is
.