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y″(x)−2ay(x)y′(x)=0 ✓ Mathematica : cpu = 0.048362 (sec), leaf count = 46
{{y(x)→c1tan(ac1x+ac1c2)a}} ✓ Maple : cpu = 0.45 (sec), leaf count = 23
{y(x)=1atan(_C1a(_C2+x))_C1a}
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