Question
2tan^2x-tanx-1=0
0<x<2pi
0<x<2pi
Answers
Steve
(2tanx+1)(tanx-1) = 0
tanx = -1/2 or 1
...
Recall in which quadrants tanx is positive or negative
tanx = -1/2 or 1
...
Recall in which quadrants tanx is positive or negative