| # |
ID |
ODE |
Solved? |
Maple |
Mma |
Sympy |
time(sec) |
| 11301 |
\begin{align*}
\left (x^{2}-4\right ) y^{\prime \prime }+y&=0 \\
\end{align*}
Series expansion around \(x=1\). |
✓ |
✓ |
✓ |
✓ |
1.697 |
|
| 11302 |
\begin{align*}
y^{\prime \prime }-y&=\cos \left (4 x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.697 |
|
| 11303 |
\begin{align*}
y^{\prime \prime }+y^{\prime }+4 y&=t^{2}+\left (2 t +3\right ) \left (1+\cos \left (t \right )\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.698 |
|
| 11304 |
\begin{align*}
\left (x^{2}+1\right ) y^{\prime \prime }+2 y^{\prime } x -2 y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.698 |
|
| 11305 |
\begin{align*}
x {y^{\prime }}^{2}+\left (k -x -y\right ) y^{\prime }+y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.698 |
|
| 11306 |
\begin{align*}
y^{\prime \prime }+2 y^{\prime }&=6 \,{\mathrm e}^{x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.698 |
|
| 11307 |
\begin{align*}
y^{\prime \prime }+3 y&=\sin \left (x \right )+\frac {\sin \left (3 x \right )}{3} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.698 |
|
| 11308 |
\begin{align*}
y^{\prime }&=2 y-y^{2} \\
y \left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.699 |
|
| 11309 |
\begin{align*}
x^{2} y^{\prime \prime }+7 y^{\prime } x +25 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.700 |
|
| 11310 |
\begin{align*}
y^{\prime \prime }-y^{\prime }+\left (\frac {1}{4}+4 \pi ^{2}\right ) y&=0 \\
y \left (0\right ) &= 1 \\
y^{\prime }\left (0\right ) &= -{\frac {1}{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.700 |
|
| 11311 |
\begin{align*}
x^{\prime }&=-3 x+2 y \\
y^{\prime }&=-2 x-3 y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.700 |
|
| 11312 |
\begin{align*}
y-2 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{x} \sec \left (x \right )^{2} \tan \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.700 |
|
| 11313 |
\begin{align*}
y^{\prime }+p \left (x \right ) y&=q \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.701 |
|
| 11314 |
\begin{align*}
y^{\prime }&=\frac {i x^{2} \left (i-2 \sqrt {-x^{3}+6 y}\right )}{2} \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
1.701 |
|
| 11315 |
\begin{align*}
-4 y+3 y^{\prime \prime }+y^{\prime \prime \prime \prime }&=\cos \left (x \right )^{2}-\cosh \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.701 |
|
| 11316 |
\begin{align*}
y^{\prime \prime }-2 y^{\prime }&=12 x -10 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.701 |
|
| 11317 |
\begin{align*}
x^{2} y^{\prime \prime }+y^{\prime } x +\left (l \,x^{2}-v^{2}\right ) y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.702 |
|
| 11318 |
\begin{align*}
v^{\prime }&=\frac {K -v}{R C} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.702 |
|
| 11319 |
\begin{align*}
y^{\prime \prime }+9 y&={\mathrm e}^{2 x} \sin \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.702 |
|
| 11320 |
\begin{align*}
y^{\prime \prime \prime \prime }-16 y&=\delta \left (t \right ) \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 0 \\
y^{\prime \prime }\left (0\right ) &= 0 \\
y^{\prime \prime \prime }\left (0\right ) &= 0 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
1.702 |
|
| 11321 |
\begin{align*}
u^{\prime }&=2 v-1 \\
v^{\prime }&=1+2 u \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.703 |
|
| 11322 |
\begin{align*}
y^{\prime \prime \prime }-y^{\prime \prime }+y^{\prime }-y&=4 \cos \left (t \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.703 |
|
| 11323 |
\begin{align*}
y^{\prime \prime }+4 y^{\prime }+20 y&=3+2 \cos \left (2 t \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.704 |
|
| 11324 |
\begin{align*}
y^{\prime \prime }-y^{\prime }-2 y&={\mathrm e}^{3 x} \\
y \left (0\right ) &= 1 \\
y^{\prime }\left (0\right ) &= 2 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.704 |
|
| 11325 |
\begin{align*}
2 y-3 y^{\prime }+y^{\prime \prime }&=\sec \left ({\mathrm e}^{-x}\right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.704 |
|
| 11326 |
\begin{align*}
y^{\prime \prime }+9 y&=27 x +18 \\
y \left (0\right ) &= 23 \\
y^{\prime }\left (0\right ) &= 21 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.705 |
|
| 11327 |
\begin{align*}
y-2 y^{\prime }+y^{\prime \prime }&=\frac {{\mathrm e}^{x}}{x} \\
y \left (1\right ) &= 0 \\
y^{\prime }\left (1\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.705 |
|
| 11328 |
\begin{align*}
y^{\prime \prime \prime }+\alpha y^{\prime \prime }+\beta y^{\prime }+y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.705 |
|
| 11329 |
\begin{align*}
y^{\prime \prime }-9 y&=0 \\
y \left (0\right ) &= -1 \\
y^{\prime }\left (0\right ) &= 15 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.706 |
|
| 11330 |
\begin{align*}
-2 y+\left (x^{2}+1\right ) y^{\prime \prime }&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.706 |
|
| 11331 |
\begin{align*}
y^{\prime \prime }-4 y^{\prime }+5 y&=5 \sin \left (x \right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.706 |
|
| 11332 |
\begin{align*}
y^{\prime \prime } x +\frac {y^{\prime }}{2}+\frac {y}{4}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.706 |
|
| 11333 |
\begin{align*}
x^{\prime }&=x-y \\
y^{\prime }&=5 x-y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.706 |
|
| 11334 |
\begin{align*}
x_{1}^{\prime }&=3 x_{1}+2 x_{2} \\
x_{2}^{\prime }&=3 x_{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.706 |
|
| 11335 |
\begin{align*}
y^{\prime }&={\mathrm e}^{-t}+\ln \left (1+y^{2}\right ) \\
y \left (0\right ) &= 0 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
1.707 |
|
| 11336 |
\begin{align*}
y^{\prime \prime }&=\frac {\left (2 x^{2}-1\right ) y^{\prime }}{x^{3}}-\frac {y}{x^{4}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.707 |
|
| 11337 |
\begin{align*}
y^{\prime \prime }+y^{\prime }-6 y&=10 \,{\mathrm e}^{2 x}-18 \,{\mathrm e}^{3 x}-6 x -11 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.707 |
|
| 11338 |
\begin{align*}
y^{\prime \prime \prime }-27 y&={\mathrm e}^{-3 t} \\
y \left (0\right ) &= 2 \\
y^{\prime }\left (0\right ) &= 3 \\
y^{\prime \prime }\left (0\right ) &= 4 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
1.707 |
|
| 11339 |
\begin{align*}
y^{\prime \prime }+y&=\frac {1}{x^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.707 |
|
| 11340 |
\begin{align*}
-a y-y^{\prime } x +y^{\prime \prime }&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
1.708 |
|
| 11341 |
\begin{align*}
y^{\prime }&=-x^{3} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.708 |
|
| 11342 |
\begin{align*}
3 x^{2} y^{\prime \prime }-y^{\prime } x +y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.708 |
|
| 11343 |
\begin{align*}
3 x^{2} y^{\prime \prime }-y^{\prime } x +y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.708 |
|
| 11344 |
\begin{align*}
y^{\prime \prime }-y^{\prime }-2 y&=4 x^{2} \\
y \left (0\right ) &= 1 \\
y^{\prime }\left (0\right ) &= 4 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.708 |
|
| 11345 |
\begin{align*}
y^{\prime }+y&={\mathrm e}^{x} \\
y \left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.709 |
|
| 11346 |
\begin{align*}
y^{\prime }+y^{2}-3 y+2&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.709 |
|
| 11347 |
\begin{align*}
y^{\prime \prime }+9 y&=15 \sin \left (2 t \right )+\delta \left (t -\frac {\pi }{6}\right ) \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
1.709 |
|
| 11348 |
\begin{align*}
y^{\prime \prime }+x^{2} y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.709 |
|
| 11349 |
\begin{align*}
y^{\prime \prime }+\frac {2 y^{\prime }}{x}&=n^{2} y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.709 |
|
| 11350 |
\begin{align*}
y^{\prime \prime }+2 y^{\prime }-15 y&=16 \,{\mathrm e}^{t} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.709 |
|
| 11351 |
\begin{align*}
y^{\prime \prime }+y^{\prime }+y&=0 \\
y^{\prime }\left (0\right ) &= 0 \\
y \left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.710 |
|
| 11352 |
\begin{align*}
x^{2} y^{\prime \prime }+y^{\prime } x +y&=0 \\
\end{align*}
Series expansion around \(x=1\). |
✓ |
✓ |
✓ |
✓ |
1.710 |
|
| 11353 |
\begin{align*}
x^{\prime \prime }+2 x^{\prime }+4 x&={\mathrm e}^{t} \cos \left (2 t \right ) \\
x \left (0\right ) &= 0 \\
x^{\prime }\left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.710 |
|
| 11354 |
\begin{align*}
-a y-\left (a -\left (2-a \right ) x \right ) y^{\prime }+x \left (x +1\right ) y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.711 |
|
| 11355 |
\begin{align*}
x^{2}+y^{2}+x +y y^{\prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.711 |
|
| 11356 |
\begin{align*}
x^{2} y^{\prime \prime }+y^{\prime } x +x^{2} y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.711 |
|
| 11357 |
\begin{align*}
u^{\prime \prime }+u^{\prime }+u&=\cos \left (r +u\right ) \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
1.712 |
|
| 11358 |
\begin{align*}
y^{\prime \prime }+\tan \left (x \right ) y^{\prime }&=\sin \left (2 x \right ) \\
y \left (0\right ) &= -1 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.712 |
|
| 11359 |
\begin{align*}
y^{\prime \prime }-y&=t^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.712 |
|
| 11360 |
\begin{align*}
\left (x +1\right ) y^{\prime \prime }-3 y^{\prime } x +2 y&=0 \\
\end{align*}
Series expansion around \(x=1\). |
✓ |
✓ |
✓ |
✓ |
1.713 |
|
| 11361 |
\begin{align*}
y^{\prime \prime } x -\left (2+x \right ) y^{\prime }+2 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.713 |
|
| 11362 |
\begin{align*}
y^{\prime \prime }+x^{2} y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.713 |
|
| 11363 |
\begin{align*}
x&=y^{\prime \prime }+y^{\prime } \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.713 |
|
| 11364 |
\begin{align*}
4 y^{2} {y^{\prime }}^{2}+2 \left (1+3 x \right ) x y y^{\prime }+3 x^{3}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.713 |
|
| 11365 |
\begin{align*}
x^{\prime }-x+2 y^{\prime }+7 y&=3 t -15 \\
2 x^{\prime }+y^{\prime }+x+5 y&=9 t -7 \\
\end{align*}
With initial conditions \begin{align*}
x \left (0\right ) &= 0 \\
y \left (0\right ) &= -3 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.713 |
|
| 11366 |
\begin{align*}
y^{\prime \prime } x +y^{\prime }+y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.714 |
|
| 11367 |
\begin{align*}
x^{\prime }&=-x+4 y+2 z \\
y^{\prime }&=4 x-y-2 z \\
z^{\prime }&=6 z \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.714 |
|
| 11368 |
\begin{align*}
\left (x^{2}+1\right ) {y^{\prime }}^{2}&=1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.714 |
|
| 11369 |
\begin{align*}
y&=y^{\prime } x +\frac {a}{{y^{\prime }}^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.714 |
|
| 11370 |
\begin{align*}
2 \left (b x +3 a \right ) y-2 x \left (b x +2 a \right ) y^{\prime }+x^{2} \left (b x +a \right ) y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.715 |
|
| 11371 |
\begin{align*}
y^{\prime }&=\sin \left (x -y\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.716 |
|
| 11372 |
\begin{align*}
5 y+2 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{x} \\
y \left (0\right ) &= -1 \\
y^{\prime }\left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.716 |
|
| 11373 |
\begin{align*}
y^{\prime \prime }+5 y^{\prime }+6 y&=2 \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.716 |
|
| 11374 |
\begin{align*}
y^{\prime \prime }+y&=\sin \left (2 x \right ) \sin \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.716 |
|
| 11375 |
\begin{align*}
x^{\prime }+5 x+y&=7 \,{\mathrm e}^{t}-27 \\
-2 x+y^{\prime }+3 y&=-3 \,{\mathrm e}^{t}+12 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.716 |
|
| 11376 |
\begin{align*}
y^{\prime \prime }+y^{\prime } x +\left (x^{2}+2\right ) y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.716 |
|
| 11377 |
\begin{align*}
y^{\prime \prime } x +y^{\prime } x -2 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.717 |
|
| 11378 |
\begin{align*}
y^{\prime \prime \prime \prime }+y^{\prime \prime }+16 y&=g \left (t \right ) \\
y \left (0\right ) &= 2 \\
y^{\prime }\left (0\right ) &= 0 \\
y^{\prime \prime }\left (0\right ) &= 0 \\
y^{\prime \prime \prime }\left (0\right ) &= 0 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
1.717 |
|
| 11379 |
\begin{align*}
y^{\prime \prime }+y^{\prime }&=10 x^{4}+2 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.717 |
|
| 11380 |
\begin{align*}
y^{\prime \prime }+y&=\tan \left (x \right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.717 |
|
| 11381 |
\begin{align*}
y^{\prime \prime }+\left (-1+x \right ) y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.718 |
|
| 11382 |
\begin{align*}
x^{\prime \prime }+10 x^{\prime }+25 x&=2^{t}+t \,{\mathrm e}^{-5 t} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.718 |
|
| 11383 |
\begin{align*}
x^{\prime }&=2 x-y-5 t \\
y^{\prime }&=3 x+6 y-4 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.719 |
|
| 11384 |
\begin{align*}
y^{\prime }+\left (\frac {1}{x}-1\right ) y&=-\frac {2}{x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.720 |
|
| 11385 |
\begin{align*}
\left (a +b \sin \left (x \right )^{2}\right ) y+y^{\prime \prime }&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
1.720 |
|
| 11386 |
\begin{align*}
b^{2} y+2 a y^{\prime }+y^{\prime \prime }&=c \sin \left (k x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.720 |
|
| 11387 |
\begin{align*}
-12 y-2 \left (2 x +1\right ) y^{\prime }+\left (2 x +1\right )^{2} y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.720 |
|
| 11388 |
\begin{align*}
y^{\prime \prime }-y x&=1 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✗ |
1.720 |
|
| 11389 |
\begin{align*}
\left (-4 x^{2}+1\right ) y^{\prime \prime }+8 y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.720 |
|
| 11390 |
\begin{align*}
b x y+a y^{\prime }+y^{\prime \prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.720 |
|
| 11391 |
\begin{align*}
y^{\prime \prime }+y^{\prime }+y&=t^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.720 |
|
| 11392 |
\begin{align*}
t^{2} y^{\prime \prime }-2 y^{\prime } t&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.720 |
|
| 11393 |
\begin{align*}
y^{\prime \prime }+4 y^{\prime }+3 y&=\cosh \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.720 |
|
| 11394 |
\begin{align*}
x^{3} y^{\prime \prime }-2 y x&=6 \ln \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.720 |
|
| 11395 |
\begin{align*}
x^{2} y^{\prime \prime }-x^{2} y^{\prime }+\left (x -2\right ) y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.721 |
|
| 11396 |
\begin{align*}
x^{2} y^{\prime \prime }+y^{\prime } x +\left (x +1\right ) y&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✗ |
1.721 |
|
| 11397 |
\begin{align*}
y^{\prime \prime }+\left (3 y+f \left (x \right )\right ) y^{\prime }+y^{3}+f \left (x \right ) y^{2}&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
1.721 |
|
| 11398 |
\begin{align*}
x^{\prime }&=3 x-5 y \\
y^{\prime }&=4 x-5 y \\
\end{align*}
With initial conditions \begin{align*}
x \left (\pi \right ) &= 1 \\
y \left (\pi \right ) &= {\frac {4}{5}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.721 |
|
| 11399 |
\begin{align*}
y^{\prime }&=y+z+x \\
z^{\prime }&=1-y-z \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.721 |
|
| 11400 |
\begin{align*}
y^{\prime \prime }+4 y^{\prime }+4 y&=x^{2}-2 x +1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.721 |
|