Question

Help with integration please! Picture is supplied.

Answer 1

Try \(u=x^4\).
Take the derivative to find \(du\) in terms of \(x\)

Answer 2

How do i remove the 3x^3 then?

Answer 3

\(u = x^4\)

\(du=4x^3 dx\)
\[\frac{ 3 }{ 4 }du=3x^3dx\]
Then substitute into the integral
\[\frac{ 3 }{ 4 }\int\limits \tan u ~du\]

Answer 4

but what is \[\int\limits_{ }^{ }(\tan(x))\]