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(y(x))2(ddxy(x))2+(y(x))2−a2=0
Mathematica: cpu = 0.023503 (sec), leaf count = 117 {{y(x)→−a2−2c1x−c12−x2},{y(x)→a2−2c1x−c12−x2},{y(x)→−a2+2c1x−c12−x2},{y(x)→a2+2c1x−c12−x2}}
Maple: cpu = 0.608 (sec), leaf count = 59 {y(x)=a,y(x)=−_C12+2_C1x+a2−x2,y(x)=−a,y(x)=−−_C12+2_C1x+a2−x2}
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