Question 1184289
{{{Tan(x) + Sec(x) = 2Cos(x)}}}  <===> {{{Sin(x)/Cos(x) + 1/Cos(x) = 2Cos(x)}}}


===> {{{Sin(x) + 1 = 2Cos^2(x) = 2 - 2Sin^2(x)}}} ===> {{{2Sin^2(x) + Sin(x)-1=0}}}


<===> {{{(2Sin(x) - 1 )(Sin(x) + 1 ) = 0}}}


===> Sin(x) = 1/2 or Sin(x) = -1


===> {{{x = highlight(pi/6)}}} or {{{x = highlight((5pi)/6)}}} or {{{x = cross((3pi)/2)}}}