Problem solving for x

[john425]

I am having trouble solving for the two values
of (x) that are closest to zero.

-30 sin 3x = 1/10 cos 3x

Is there a formula I could use to make this easy?

[arildno]

Write this as an equation in tan(3x)..

[Damned charming :)]

sin(x)/cos(x) = tan(x)

to see why this is true Draw a right triangle with hypotenuse 1 and an acute angle x, you can work the sides of the right triangle have lengths sin(x) and cos(x).

[john425]

Oh yea! I just forgot!

Thank you!