Question

What are all the solutions of tan^2(x)-1=0 on the interval [0,2pi)?

Answer 1

tan^2(x) = 1
tan(x) = 1
tan(x) = 1 at reference angle 45 degrees in quadrants 1 and 3.

Answer 2

so the solutions are pi/4 and 3pi/4?

Answer 3

i mean pi/4 and 5pi/4

Answer 4

yes
☺

Answer 5

yay! thank you!