Question 348080
{{{(tan(x))^3=tan(x)}}}
 {{{(tan(x))^2=1}}}
{{{tan(x)=1}}} and {{{tan(x)=-1}}}
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{{{x=pi/4}}}
{{{x=(3*pi)/4}}}
{{{x=(5*pi)/4}}}
{{{x=(7*pi)/4}}}