2.1067   ODE No. 1067

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

$$y^{″}(x)+\tan (x)y^{\prime }(x)-y(x){\cos }^2(x)=0$$ ✓ Mathematica : cpu = 0.0345519 (sec), leaf count = 21

$$\left\{\{y(x)\to c_1\cosh (\sin (x))+i{c}_2\sinh (\sin (x))\}\right\}$$

✓ Maple : cpu = 0.061 (sec), leaf count = 17

$$\{y\left(x\right)=\mathit{\_}\mathit{C}\mathit{1}{\mathrm{e}}^{\sin \left(x\right)}+\mathit{\_}\mathit{C}\mathit{2}{\mathrm{e}}^{-\sin \left(x\right)}\}$$