Question 886892
Suppose that sin θ = 5/13 and that θ is a Quadrant II angle. 
 
 (a) Find the exact value of cos θ. 
{{{cos(t) = sqrt(1 - sin^2(t))}}}
 
 (b) Find the exact value of sin 2θ. 
sin(2t) = 2sin(t)cos(t)