(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The original problem is this: ab^2*cos(2x)*(cos(x))^2 + ba^2*sin(2x)*(sin(x))^2 = 0

And some of the more "logical" forms I've got to are these:

2[tan(x)]^3-2tan(x) = -b/a

tan(2x)*(tan(x))^2=-b/a

But I can't solve these equations so I'd like to ask for some help here.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Trigonometric equation

**Physics Forums | Science Articles, Homework Help, Discussion**