Question

Solve 2tanx - 4 = 0 for principal values of x.

Answer 1

\[2\tan(x)-4=0\]
\[2\tan(x)=4\]
\[\tan(x)=\frac{4}{2}\]
You finish it off with your calculator.

Answer 2

Lol, yes I got to this step, but I wanted to try and work it on hand though.