Find the indefinite integral.

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}se{c}^{5}5xtan5xdx$

Find the indefinite integral $by$ using

Trigonometric substilltion.

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}x\sqrt[\phantom{2}]{49+x^2}dx$

Use Partial fractions $to$ find integral

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{17x-145}{x^2-17x+72}dx$