Please integrate now and show all workings Integrate the fol

Please integrate now and show all workings.

Integrate the following functions and show all work (2 + 3x) 3 dx 5x2 / dx sin 3x dx

Solution

1.2dx+3xdx

=2x+3x^2/2+c

2.let x^3=t

3x^2dx=dt

x^2dx=dt/3

=5/3dt/((t+2))=10/3 (t+2)+c

=10(x^3+3)/3+c

3.=-(cos3x)/3