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#### bergausstein

##### Active member

- Jul 30, 2013

- 191

$\displaystyle x=B cos(\omega+\alpha)$

in which $\omega$ is a parameter(not to be eliminated).

I first took the two derivatives of x with respect to t:

$\displaystyle \frac{dx}{dt}=-\omega B\sin(\omega+\alpha)$

$\displaystyle \frac{d^2x}{dt^2}=-{\omega}^2 B\cos(\omega+\alpha)$

2.) Eliminate $c_1$ and $c_2$ from the relation

$\displaystyle y={c_1}\sin(x)+{c_2}\cos(x)+x^2$

can you help me what to do next? I just dont understand how my book explained the steps because it's brief. please show me the steps on eliminating the constants.