Question 310396
Find the magnitude of (3,-2).
(-3,2):{{{sqrt((-3)^2+(2)^2)=sqrt(9+4)=sqrt(13)}}}
{{{cos(theta)=-3/sqrt(13)}}}
{{{sin(theta)=2/sqrt(13)}}}
{{{csc(theta)=1/sin(theta)=sqrt(13)/2}}}