Question

to integrate sin(2x) do i have to change it to 1/2-cos92x) ?

Answer 1

\[\int\limits \sin(2x)dx\]

you dont have to change it , you can do a substitution with u
let
u=2x
du=2dx

Answer 2

so you get sin(u) and for the dx, you get dx=du/2

\[\large \int\limits \sin(u)(\frac{ 1 }{ 2 })du=\frac{ 1 }{ 2 }\int\limits \sin(u)du\]

Answer 3

right?

Answer 4

okay ill give u the full problem lol this is what i did by using the table