Solve each equation for x if 0 http://upload.wikimedia.org/math/6/a...5c0f8773f9.png x http://upload.wikimedia.org/math/a/f...c58796ddf7.png 2π give your answers in radians using exact values only.

sin x = -cos 2x

I need help :)

Printable View

- May 6th 2009, 04:23 PMineedmathhelp08trigonometry equations help
Solve each equation for x if 0 http://upload.wikimedia.org/math/6/a...5c0f8773f9.png x http://upload.wikimedia.org/math/a/f...c58796ddf7.png 2π give your answers in radians using exact values only.

sin x = -cos 2x

I need help :) - May 6th 2009, 04:40 PMReferos
Try using the identity .