Trigonometric Functions (1 Viewer)

[yeyjasminetime]

How to solve :

tan^2 (x) -1 = 0

(I basically have to find the stationary points but I'm not sure how to find x)

 

[asianese]

How would you isolate 'x' if the equation was

?

Apply the same logic.

 

[yeyjasminetime]

Thanks!