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

i'm trying to find two constants in the same equation. its an initial value problem

there's a two parameter family x=c1cost+c2sint with initial conditions x''+x=0, x(pi/6)=1/2, and x'(pi/6)=0

so i'm trying to find c1, and i equate the problem to 1/2 and subsitute the t's for pi/6, so it looks like

1/2=c1cos(pi/6)+c2sin(pi/6)

which of course equals sqrt(3)c1/2 + c2/2

but how do i get the values of c1 and c2? i've tried everything and i need them to find a solution

2. Relevant equations

3. The attempt at a solution

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

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: How to find two constants in an equation

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