# Need some hints for solving this trigonometry equation

• September 19th 2010, 11:43 AM
roxrook
Need some hints for solving this trigonometry equation
Hi everyone,

I'm really struggling with this equation, I can't figure out what form is this?Can anyone give me hint where to start?
5*sin( 10*pi*x ) + 3*sin( 3*pi*x ) = 0

Thanks,
• September 23rd 2010, 03:06 AM
Mollier
Hi,

for which x does $sin(2\pi x)=0$?

What if you wrote your equation as

$5sin(5\cdot 2\pi x) + 3sin(\frac{3}{2}\cdot 2\pi x)=0$?