2.1548   ODE No. 1548

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

$$4y^{(4)}(x)-12y^{(3)}(x)+11y^{″}(x)-3y^{\prime }(x)-4\cos (x)=0$$ ✓ Mathematica : cpu = 0.0995761 (sec), leaf count = 50

$$\left\{\{y(x)\to 2c_1{e}^{x/2}+\frac{2}{3}{c}_2{e}^{3x/2}+c_3{e}^x+c_4+\frac{18\sin (x)}{65}-\frac{14\cos (x)}{65}\}\right\}$$

✓ Maple : cpu = 0.073 (sec), leaf count = 32

$$\{y\left(x\right)=2\mathit{\_}\mathit{C}\mathit{2}{\mathrm{e}}^{x/2}+\frac{2\mathit{\_}\mathit{C}\mathit{3}}{3}{\mathrm{e}}^{\frac{3x}{2}}+{\mathrm{e}}^x\mathit{\_}\mathit{C}\mathit{1}+\frac{18\sin \left(x\right)}{65}-\frac{14\cos \left(x\right)}{65}+\mathit{\_}\mathit{C}\mathit{4}\}$$