# Math Help - Homogeneous differential equations

1. Haha, yes, you're right, the LHS is wrong.

Just split it as $\frac{1}{1+v^{2}}-\frac{v}{1+v^{2}}$ and there's an arctangent and a log.

2. It's an $\frac{f'(x)}{f(x)}$ thing though; we got taught at A-level they got $\ln{(f(x))}$

Actually, no, blonde moment, you're right. Thankyou

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