find the requested trig function value of...

• Oct 25th 2007, 06:11 PM
find the requested trig function value of...
Find the requested function value of θ.

If sin θ = 4 over 13, find cos θ

help plz :)
• Oct 25th 2007, 07:38 PM
Jhevon
Quote:

recall $\sin^2 \theta + \cos^2 \theta = 1$
plug in the value for $\sin \theta$ and solve for $\cos \theta$