# Solving trig equations

• December 8th 2010, 05:59 PM
sun95
Solving trig equations
Got stuck on this one.

If tan2x = -24/7, find the values of sinx and cosx
• December 8th 2010, 06:03 PM
pickslides
$\tan 2x = \frac{\sin 2x}{\cos 2x} = \frac{-24}{7}$

and $\sin^22x+\cos^22x=1$
• December 8th 2010, 06:06 PM
sun95
Oh now I feel silly lol, I think after doing the first 30 of 50 homework questions of these the brain starts to slip a little. Thanks!