5.5 The Substitution Rule/25

$\int e^{x}{\sqrt {1+e^{x}}}dx$

$u=1+e^{x}$

$du=e^{x}dx$

$\int {\sqrt {u}}du$

Failed to parse (unknown function "\fract"): {\displaystyle \sqrt{u}=\fract }

Failed to parse (unknown function "\fract"): {\displaystyle \fract{2u^\fract{2}{3}}{3} }