Question 314150
{{{ X=5}}}
{{{ Y=2}}}
{{{ R=sqrt(X^2+Y^2)=sqrt(25+9)=sqrt(29)}}}
{{{cos(theta)=X/R}}}
{{{ cos(theta)=5/sqrt(29)}}}
{{{sec(theta)=1/cos(theta)}}}
{{{ sec(theta)=sqrt(29)/5}}}