Asked by ROBIN
2tan^2x-tanx-1=0
0<x<2pi
0<x<2pi
Answers
Answered by
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
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