Question 868332
{{{cos(y)*(tan(y)-sec(y))}}}



{{{cos(y)*tan(y)-cos(y)*sec(y)}}}



{{{cos(y)*(sin(y)/cos(y))-cos(y)*(1/cos(y))}}}



{{{(cos(y)*sin(y))/cos(y)-(cos(y)*1)/cos(y)}}}



{{{(cos(y)*sin(y))/cos(y)-(cos(y))/cos(y)}}}



{{{(highlight(cos(y))*sin(y))/(highlight(cos(y)))-(highlight(cos(y)))/(highlight(cos(y)))}}}



{{{(cross(cos(y))*sin(y))/(cross(cos(y)))-(cross(cos(y)))/(cross(cos(y)))}}}



{{{(1*sin(y))/(1)-(1)/(1)}}}



{{{sin(y)-1}}}



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Final Answer: {{{sin(y)-1}}}