Question

Tan 3 theta = -1
Find general solution

Answer 1

$\tan(3) thete = - 1$

$\tan \: (theta) = \frac{ - 1}{3}$

=

$\frac{ - 1}{3}$

i hope u will got it idea

Answer 2

It’s really very easy.
You can see the attachment.
If you don’t understand just comment in the comment box.