## anonymous one year ago How to solve trig equation ? $$tan^2=4$$

1. anonymous

Do I just $$\sqrt{tan^2} = \sqrt{4}$$ $$\sqrt{tan^2} = \sqrt{4}$$ $$tan = 2$$

2. amoodarya

you don't forget something ? $tanx=\pm2$

3. anonymous

Ok, so I was on the right path