(a)
\The integral is
.
Let
.
Apply derivative on each side.
\


Substitute
.

Substitute
and
.



The above integral cannot be solved using the basic integration formulas.
\(b)
\The integral is
.
Let us consider
.
Apply derivative on each side.
\


Substitute
and
.



Substitute
.

.
(c)
\The integral is
.
Let us consider
.
Apply derivative on each side.
\




Substitute
and
.



Substitute
.

.
Therefore, the integral
can be found using the basic integration formulas.
The integral
can be found using the basic integration formulas.