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f(x)(1−y(x))y(x)y′(x)+2(1−y(x))y(x)y″(x)−((1−2y(x))y′(x)2)=0 ✓ Mathematica : cpu = 0.067692 (sec), leaf count = 53
{{y(x)→1−sin2(12(−∫1x−exp(−∫1K[3]12f(K[1])dK[1])c1dK[3]−c2))}} ✓ Maple : cpu = 0.247 (sec), leaf count = 42
{y(x)=(2c2ec1(∫e−(∫f(x)dx)2dx)+1)2e∫−c1e∫−f(x)2dxdx8c2}
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