# Math Help - wave equations

1. ## wave equations

Am having problems with this question, can anyone help out?

a(x) = 5sinx
b(x) = 4cos(2x + pi/3)

Give the equation for the combined waves??

2. Originally Posted by Survey Ian
Am having problems with this question, can anyone help out?

a(x) = 5sinx
b(x) = 4cos(2x + pi/3)

Give the equation for the combined waves??
Wave usually satisfy supperposition so:

$c(x)=5\sin(x)+4\cos(2x+\pi/3)=5\sin(x)+4\sin(x+2\pi /3)$

CB