SOLUTION: please help me solve this problem! find the solution for each equation on [0, 2pi): 2tanx - sec^2x = 0

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Question 887824: please help me solve this problem!
find the solution for each equation on [0, 2pi):
2tanx - sec^2x = 0
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
find the solution for each equation on [0, 2pi):
2tanx+-+sec%5E2%28x%29+=+0
%282sinx%2Fcosx%29+-1%2F+cos%5E2%28x%29+=+0
lcd: cos^2(x)
%282sinx%2Acosx%29+-1=+0
sin2x=1
2x=π/2
x=π/4