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cos(x)y′(x)−y(x)4−y(x)sin(x)=0 ✓ Mathematica : cpu = 0.0518102 (sec), leaf count = 98
{{y(x)→1c1cos3(x)−sin(x)−2sin(x)cos2(x)3},{y(x)→−−13c1cos3(x)−sin(x)−2sin(x)cos2(x)3},{y(x)→(−1)2/3c1cos3(x)−sin(x)−2sin(x)cos2(x)3}}
✓ Maple : cpu = 0.123 (sec), leaf count = 237
{y(x)=1_C1(sin(x))4+2cos(x)(sin(x))3−2_C1(sin(x))2−3cos(x)sin(x)+_C1cos(x)(_C1(sin(x))4+2cos(x)(sin(x))3−2_C1(sin(x))2−3cos(x)sin(x)+_C1)23,y(x)=i3−12_C1(sin(x))4+4cos(x)(sin(x))3−4_C1(sin(x))2−6cos(x)sin(x)+2_C1cos(x)(_C1(sin(x))4+2cos(x)(sin(x))3−2_C1(sin(x))2−3cos(x)sin(x)+_C1)23,y(x)=−1+i32_C1(sin(x))4+4cos(x)(sin(x))3−4_C1(sin(x))2−6cos(x)sin(x)+2_C1cos(x)(_C1(sin(x))4+2cos(x)(sin(x))3−2_C1(sin(x))2−3cos(x)sin(x)+_C1)23}
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