Images SIN X A COS 2X

< Previous image
Image - 4
Next image >
Sin x a cos 2x. 2cosx+cos2x=2sinx. Cosx×sin x=cos^2 x. Sinx * cos x = sin 2x. Cos2x-sinx-1=0.
2cosx+cos2x=2sinx. Cosx×sin x=cos^2 x. Sinx * cos x = sin 2x. Cos2x-sinx-1=0.

See also