4.67   ODE No. 1067

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

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

Mathematica: cpu = 0.032504 (sec), leaf count = 21 $$\left\{\{y(x)\to c_1\cosh (\sin (x))+i{c}_2\sinh (\sin (x))\}\right\}$$

Maple: cpu = 0.032 (sec), leaf count = 17 $$\{y\left(x\right)=\mathit{\_}\mathit{C}\mathit{1}{\mathrm{e}}^{\sin \left(x\right)}+\mathit{\_}\mathit{C}\mathit{2}{\mathrm{e}}^{-\sin \left(x\right)}\}$$