The first one is
sinx+cosx=0 solve between 0 and 2pi
See I am not sure how to start this one?
The next question is find find for all real values of x
3tanx^2= square root 3 tanx Also the square root only covers 3
So to do this one would I have to square the square root of 3 on one side
Then on the other side do (3tanx^2)(3tan^2x)
Also the x is on the tan not on the exponent.