Question 1201765
tan(x) [sec(x) - cos(x)]
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          sin (x)      


{{{ tan(x)((1/cos(x) -cos(x))/sin(x))}}}


{{{ tan(x)((1-cos^2(x))/cos(x))/sin(x))}}}


{{{ tan(x)((sin^2(x))/cos(x))/sin(x))}}}


{{{ (tan(x)/sin(x))((sin^2(x))/cos(x)))}}}

{{{ (1/cos(x))((sin^2(x))/cos(x))}}}


{{{ (sin^2(x))/cos^2(x)}}}


{{{tan^2(x)}}}