2.1001   ODE No. 1001

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

\[ y''(x)=0 \] ✓ Mathematica : cpu = 0.0027648 (sec), leaf count = 12

\[\{\{y(x)\to c_2 x+c_1\}\}\] ✓ Maple : cpu = 0.003 (sec), leaf count = 9

\[ \left \{ y \left ( x \right ) ={\it \_C1}\,x+{\it \_C2} \right \} \]

Hand solution

\[ y^{\prime \prime }=0 \]

Integration twice gives

\[ y\left ( x\right ) =c_{1}x+c_{2}\]