SOLUTION: Find all solutions on the interval (0,2pi) Sec^2x - 2tanx =0

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Question 970567: Find all solutions on the interval (0,2pi)
Sec^2x - 2tanx =0
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find all solutions on the interval (0,2pi)
Sec^2x - 2tanx =0
1%2Fcos%5E2%28x%29-2sinx%2Fcosx=0
%281-2sinxcosx%29%2Fcos%5E2%28x%29=0
1-2sinxcosx=0
1-sin2x=0
sin2x=1
2x=π/2
x=π/4