11. Techniques of Integration

Find the integral.

$\(\int\)_{}^{}se^{3s}ds$

Find the integral.

$\(\int\)_{}^{}x^2\(\ln\) xdx$

Find the indefinite integral.

$\(\int\)_{}^{}r^2e^{-r}dr$

Evaluate the indefinite integral.

$\(\int\)_{}^{}\(\left\)(s^2+4\(\right\))e^{3s}ds$