3.5   ODE No. 5

$$\boxed{{\displaystyle \frac{\mathrm{d}}{\mathrm{d}x}y\left(x\right)+y\left(x\right)\cos \left(x\right)-{\mathrm{e}}^{2x}=0}}$$

1. Problem in Latex
2. Mathematica input
3. Maple input

Mathematica: cpu = 3.134898 (sec), leaf count = 38 $$\left\{\{y(x)\to e^{-\sin (x)}{\int }_1^x{e}^{2K[1]+\sin (K[1])}dK[1]+c_1{e}^{-\sin (x)}\}\right\}$$

Maple: cpu = 0.171 (sec), leaf count = 27 $$\{y\left(x\right)={\mathrm{e}}^{-\sin \left(x\right)}\int {\mathrm{e}}^{2x+\sin \left(x\right)}\mathrm{d}x+{\mathrm{e}}^{-\sin \left(x\right)}\mathit{\_}\mathit{C}\mathit{1}\}$$

Sage: cpu = 2.088 (sec), leaf count = 0 $$[(c+\int e^{(2x+\sin \left(x\right))}dx)e^{(-\sin \left(x\right))},\mathtt{\text{linear}}]$$