Question 887824
find the solution for each equation on [0, 2pi):
{{{2tanx - sec^2(x) = 0}}}
{{{(2sinx/cosx) -1/ cos^2(x) = 0}}}
lcd: cos^2(x)
{{{(2sinx*cosx) -1= 0}}}
sin2x=1
2x=π/2
x=π/4