Question 943458
sec theta= -radical 13/2 find cot
assume theta is in quadrant II
{{{sec(theta)=-sqrt(13)/2}}}
{{{cos(theta)=-2/sqrt(13)=2sqrt(13)/13}}}
{{{sin(theta)=sqrt(1-cos^2(theta))=sqrt(1-4/13)=sqrt(9/13)=3/sqrt(13)=3sqrt(13)/13}}}
{{{cot(theta)=cos(theta)/sin(theta)=-2/3}}}