2.1009   ODE No. 1009

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

$$ly(x)+y^{″}(x)=0$$ ✓ Mathematica : cpu = 0.0037287 (sec), leaf count = 28

$$\left\{\{y(x)\to c_1\cos \left(\sqrt{l}x\right)+c_2\sin \left(\sqrt{l}x\right)\}\right\}$$ ✓ Maple : cpu = 0.027 (sec), leaf count = 21

$$\{y\left(x\right)=\mathit{\_}\mathit{C}\mathit{1}\sin \left(\sqrt{l}x\right)+\mathit{\_}\mathit{C}\mathit{2}\cos \left(\sqrt{l}x\right)\}$$