| # |
ID |
ODE |
Solved? |
Maple |
Mma |
Sympy |
time(sec) |
| 23101 |
\begin{align*}
y^{\prime }+\frac {4 y}{x}&=x \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.095 |
|
| 23102 |
\begin{align*}
\left (a \,x^{n}+b \right ) y^{\prime }&=b y^{2}+a \,x^{-2+n} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.098 |
|
| 23103 |
\begin{align*}
y y^{\prime } x&=y^{2}+x \sqrt {4 x^{2}+y^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.106 |
|
| 23104 |
\begin{align*}
y^{\prime }&=a \left (t \right ) y+\delta \left (-t +s \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.108 |
|
| 23105 |
\begin{align*}
y^{\prime }&=x^{2}-y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.113 |
|
| 23106 |
\begin{align*}
x^{\prime }&=\frac {x-t}{x-t +1} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.129 |
|
| 23107 |
\begin{align*}
x -y+2+\left (x +y-1\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.145 |
|
| 23108 |
\begin{align*}
x^{\prime }&=x^{2} \\
x \left (t_{0} \right ) &= a \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.155 |
|
| 23109 |
\begin{align*}
x \left (x^{2}+a x y+y^{2}\right ) y^{\prime }&=\left (x^{2}+b x y+y^{2}\right ) y \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.156 |
|
| 23110 |
\begin{align*}
y^{\prime }+\frac {y}{x}&=x^{2} y^{3} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.158 |
|
| 23111 |
\begin{align*}
\left (x^{2}-4 y^{2}\right ) {y^{\prime }}^{2}+6 y y^{\prime } x -4 x^{2}+y^{2}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.163 |
|
| 23112 |
\begin{align*}
\left ({\mathrm e}^{x}-1-x \right ) y^{\prime \prime }+y x&=0 \\
\end{align*}
Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✗ |
19.164 |
|
| 23113 |
\begin{align*}
\tan \left (\theta \right )+2 r \theta ^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.171 |
|
| 23114 |
\begin{align*}
y^{\prime }&=y-y^{2} \\
y \left (0\right ) &= -{\frac {1}{3}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.171 |
|
| 23115 |
\begin{align*}
x^{2}+y^{2}+2 y y^{\prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.174 |
|
| 23116 |
\begin{align*}
y^{\prime }-\frac {2 y}{x}&=\frac {1}{y x} \\
y \left (1\right ) &= 3 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.193 |
|
| 23117 |
\begin{align*}
2 x y^{2} {y^{\prime }}^{2}-y^{3} y^{\prime }-1&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.194 |
|
| 23118 |
\begin{align*}
\left (3 x^{2}-y^{2}\right ) y^{\prime }-2 y x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.199 |
|
| 23119 |
\begin{align*}
\left (x -3 y+4\right ) y^{\prime }&=2 x -6 y+7 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.203 |
|
| 23120 |
\begin{align*}
\left (a \,{\mathrm e}^{\lambda x}+b \right ) y^{\prime \prime }+\left (c \,{\mathrm e}^{\lambda x}+d \right ) y^{\prime }+\left (n \,{\mathrm e}^{\lambda x}+m \right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.210 |
|
| 23121 |
\begin{align*}
y^{\prime }&=1-y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.216 |
|
| 23122 |
\begin{align*}
y^{\prime }-a y&=t \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.221 |
|
| 23123 |
\begin{align*}
{y^{\prime \prime }}^{2}&=a +b {y^{\prime }}^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.237 |
|
| 23124 |
\begin{align*}
x +\sin \left (\frac {y}{x}\right )^{2} \left (-y^{\prime } x +y\right )&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.241 |
|
| 23125 |
\begin{align*}
y^{\prime \prime }+4 y^{\prime }+13 y&=\delta \left (t -\pi \right )+\delta \left (t -3 \pi \right ) \\
y \left (0\right ) &= 1 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
19.246 |
|
| 23126 |
\begin{align*}
x^{3}+2 y+\left (x +1\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.250 |
|
| 23127 |
\begin{align*}
\left (2 \sin \left (x \right )-\cos \left (x \right )\right ) y^{\prime \prime }+\left (7 \sin \left (x \right )+4 \cos \left (x \right )\right ) y^{\prime }+10 \cos \left (x \right ) y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.251 |
|
| 23128 |
\begin{align*}
x^{\prime }&=k x-x^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.262 |
|
| 23129 |
\begin{align*}
9 x^{2} y^{\prime \prime }+27 y^{\prime } x +10 y&=\frac {1}{x} \\
y \left (1\right ) &= 0 \\
y^{\prime }\left (1\right ) &= -1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.276 |
|
| 23130 |
\begin{align*}
x^{\prime }&=\frac {x-t +1}{x-t +2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.277 |
|
| 23131 |
\begin{align*}
y^{\prime }&=y+x^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.283 |
|
| 23132 |
\begin{align*}
y^{\prime \prime }-3 y&=0 \\
y \left (0\right ) &= 1 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.300 |
|
| 23133 |
\begin{align*}
{\mathrm e}^{\frac {y}{x}} x +y-y^{\prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.306 |
|
| 23134 |
\begin{align*}
y^{\prime }&=y^{2}+a x \tanh \left (b x \right )^{m} y+a \tanh \left (b x \right )^{m} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.313 |
|
| 23135 |
\(\left [\begin {array}{ccc} 3 & 2 & 0 \\ 2 & 0 & i \\ 0 & -i & 0 \end {array}\right ]\) |
✓ |
N/A |
N/A |
N/A |
19.316 |
|
| 23136 |
\begin{align*}
{y^{\prime }}^{2}+x&=2 y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.322 |
|
| 23137 |
\begin{align*}
y^{\prime }&=\sqrt {1-y^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.327 |
|
| 23138 |
\begin{align*}
1+{\mathrm e}^{y}+x \,{\mathrm e}^{y} y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.329 |
|
| 23139 |
\begin{align*}
y^{\prime \prime }+2 y^{\prime }+y&=\left \{\begin {array}{cc} {\mathrm e}^{-t} & 0\le t <4 \\ 0 & 4\le t \end {array}\right . \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✗ |
19.329 |
|
| 23140 |
\begin{align*}
u \left (1-v \right )+v^{2} \left (1-u\right ) u^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.343 |
|
| 23141 |
\begin{align*}
y^{\prime }&=\frac {y^{2}}{x -2} \\
y \left (1\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.344 |
|
| 23142 |
\begin{align*}
y^{\prime } t&=y-2 t y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.355 |
|
| 23143 |
\begin{align*}
2 y^{\prime } x -y&=\sin \left (y^{\prime }\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.369 |
|
| 23144 |
\begin{align*}
t^{2} y^{\prime \prime }+3 y^{\prime } t +y&=t^{7} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.378 |
|
| 23145 |
\begin{align*}
\left (b \,x^{2}+a \right ) y-y^{\prime } x +\left (-x^{2}+1\right ) y^{\prime \prime }&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.402 |
|
| 23146 |
\begin{align*}
y^{\prime }&=\frac {\alpha ^{3}+y^{2} \alpha ^{3}+2 y \alpha ^{2} \beta x +\alpha \,\beta ^{2} x^{2}+y^{3} \alpha ^{3}+3 y^{2} \alpha ^{2} \beta x +3 y \alpha \,\beta ^{2} x^{2}+\beta ^{3} x^{3}}{\alpha ^{3}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.408 |
|
| 23147 |
\begin{align*}
\left (y x +1\right ) y&=y^{\prime } x \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.418 |
|
| 23148 |
\begin{align*}
y^{\prime }+\frac {y}{\left (-x^{2}+1\right )^{{3}/{2}}}&=\frac {x +\sqrt {-x^{2}+1}}{\left (-x^{2}+1\right )^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.447 |
|
| 23149 |
\begin{align*}
y^{\prime }&=\cos \left (y\right ) \sin \left (x \right ) \\
y \left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.454 |
|
| 23150 |
\begin{align*}
y^{\prime }&=t y+t y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.459 |
|
| 23151 |
\begin{align*}
\left (x^{2}+1\right ) y^{\prime }&=y-2 x \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.465 |
|
| 23152 |
\begin{align*}
\left (-x^{2}+1\right ) z^{\prime }-z x&=a x z^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.466 |
|
| 23153 |
\begin{align*}
y^{\prime \prime }+x^{2} y^{\prime }&=4 y \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.470 |
|
| 23154 |
\begin{align*}
3 x^{4} {y^{\prime }}^{2}-y^{\prime } x -y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.480 |
|
| 23155 |
\begin{align*}
x^{3} {\mathrm e}^{2 x^{2}+3 y^{2}}-y^{3} {\mathrm e}^{-x^{2}-2 y^{2}} y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.485 |
|
| 23156 |
\begin{align*}
y^{\prime }&=y^{2}+a \lambda +a \left (\lambda -a \right ) \cot \left (\lambda x \right )^{2} \\
\end{align*} |
✗ |
✓ |
✗ |
✗ |
19.488 |
|
| 23157 |
\begin{align*}
y^{\prime }&={\mathrm e}^{-\frac {x y^{2}}{100}} \\
y \left (0\right ) &= -4 \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
19.495 |
|
| 23158 |
\begin{align*}
\ln \left (y\right ) x +y x +\left (y \ln \left (x \right )+y x \right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.498 |
|
| 23159 |
\begin{align*}
y^{\prime } x&=3 x^{2 n +1} y^{3}+\left (b x -n \right ) y+c \,x^{1-n} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.502 |
|
| 23160 |
\begin{align*}
\frac {\left (3 x^{3}-x y^{2}\right ) y^{\prime }}{y^{3}+3 x^{2} y}&=1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.510 |
|
| 23161 |
\begin{align*}
3 y^{2}-x +\left (2 y^{3}-6 y x \right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.516 |
|
| 23162 |
\begin{align*}
y^{\prime }&=-y+\operatorname {Heaviside}\left (t -3\right )+\delta \left (t -1\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.520 |
|
| 23163 |
\begin{align*}
y^{5} x^{2}+{\mathrm e}^{x^{3}} y^{\prime }&=0 \\
y \left (0\right ) &= 2 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.521 |
|
| 23164 |
\begin{align*}
\left (x +1\right ) y^{\prime }-1-y&=\left (x +1\right ) \sqrt {1+y} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.527 |
|
| 23165 |
\begin{align*}
y+\left (x^{3}+x^{3} y^{2}\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.535 |
|
| 23166 |
\begin{align*}
\left (3 x +2\right ) \left (y-2 x -1\right ) y^{\prime }-y^{2}+y x -7 x^{2}-9 x -3&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.536 |
|
| 23167 |
\begin{align*}
3 y x +3 y-4+\left (x +1\right )^{2} y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.537 |
|
| 23168 |
\begin{align*}
r^{\prime }&=-2 r t \\
r \left (0\right ) &= r_{0} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.547 |
|
| 23169 |
\begin{align*}
\frac {x^{2} y^{\prime }}{\left (x -y\right )^{2}}-\frac {y^{2}}{\left (x -y\right )^{2}}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.550 |
|
| 23170 |
\begin{align*}
y^{\prime }&=-x^{2}+y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.555 |
|
| 23171 |
\begin{align*}
y^{\prime \prime }-4 y^{\prime }+13 y&=4 \delta \left (t -3\right ) \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
19.570 |
|
| 23172 |
\begin{align*}
y&=y^{\prime } x +x^{2} {y^{\prime }}^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.572 |
|
| 23173 |
\begin{align*}
y^{\prime }&=\frac {y^{3}+2 x y^{2}+x^{2} y+x^{3}}{x \left (x +y\right )^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.576 |
|
| 23174 |
\begin{align*}
x \left (x^{4}-2 y^{3}\right ) y^{\prime }+\left (2 x^{4}+y^{3}\right ) y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.591 |
|
| 23175 |
\begin{align*}
t x^{\prime }&=6 \,{\mathrm e}^{2 t} t +x \left (2 t -1\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.592 |
|
| 23176 |
\begin{align*}
y^{\prime }&=y^{2}+a \cot \left (\beta x \right ) y+a b \cot \left (\beta x \right )-b^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.605 |
|
| 23177 |
\begin{align*}
y^{\prime \prime }+4 y^{\prime }+3 y&=\operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -1\right )+\operatorname {Heaviside}\left (-2+t \right )-\operatorname {Heaviside}\left (t -3\right ) \\
y \left (0\right ) &= -{\frac {2}{3}} \\
y^{\prime }\left (0\right ) &= 1 \\
\end{align*}
Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
19.614 |
|
| 23178 |
\begin{align*}
y^{\prime }-\frac {\sqrt {-1+y^{2}}}{\sqrt {x^{2}-1}}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.619 |
|
| 23179 |
\begin{align*}
y^{\prime }&=\frac {y \left (y^{2} x^{2}+y x \,{\mathrm e}^{x}+{\mathrm e}^{2 x}\right ) {\mathrm e}^{-2 x} \left (-1+x \right )}{x} \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.623 |
|
| 23180 |
\begin{align*}
\left (x +y-1\right ) y^{\prime }&=x +y+1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.630 |
|
| 23181 |
\begin{align*}
\left (1+\cos \left (\theta \right )\right ) r^{\prime }&=-r \sin \left (\theta \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.630 |
|
| 23182 |
\begin{align*}
y^{\prime \prime }+\left (a \,{\mathrm e}^{\lambda x}+b \right ) y^{\prime }+\left (\alpha \,{\mathrm e}^{2 \lambda x}+\beta \,{\mathrm e}^{\lambda x}+\gamma \right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.632 |
|
| 23183 |
\begin{align*}
x y \left (x^{2}+1\right ) y^{\prime }-1-y^{2}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.633 |
|
| 23184 |
\begin{align*}
\left (2 y+x +7\right ) y^{\prime }-y+2 x +4&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.634 |
|
| 23185 |
\begin{align*}
y-t +\left (y+t \right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.640 |
|
| 23186 |
\begin{align*}
y^{\prime \prime }-y^{\prime }+{\mathrm e}^{2 x} y&=x \,{\mathrm e}^{2 x}-1 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.644 |
|
| 23187 |
\begin{align*}
\left (b +a \sin \left (y\right )^{2}\right ) y^{\prime \prime }+a {y^{\prime }}^{2} \cos \left (y\right ) \sin \left (y\right )+A y \left (c +a \sin \left (y\right )^{2}\right )&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.648 |
|
| 23188 |
\begin{align*}
y^{\prime } x -y^{2} \ln \left (x \right )+y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.650 |
|
| 23189 |
\begin{align*}
y^{\prime \prime }+x^{2} y^{\prime }-4 y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.656 |
|
| 23190 |
\begin{align*}
y^{\prime }&=\lambda \arcsin \left (x \right )^{n} y^{2}+a y+a b -b^{2} \lambda \arcsin \left (x \right )^{n} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.657 |
|
| 23191 |
\begin{align*}
y^{\prime }&=1+\frac {y}{x}-\frac {y^{2}}{x^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.658 |
|
| 23192 |
\begin{align*}
3 x^{2} \tan \left (y\right )-\frac {2 y^{3}}{x^{3}}+\left (x^{3} \sec \left (y\right )^{2}+4 y^{3}+\frac {3 y^{2}}{x^{2}}\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✗ |
✗ |
19.689 |
|
| 23193 |
\begin{align*}
\sqrt {y}+\left (x^{2}+4\right ) y^{\prime }&=0 \\
y \left (0\right ) &= 4 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.695 |
|
| 23194 |
\begin{align*}
y^{\prime }&=1+y+y^{2} \cos \left (t \right ) \\
y \left (0\right ) &= 0 \\
\end{align*} |
✗ |
✓ |
✗ |
✗ |
19.703 |
|
| 23195 |
\begin{align*}
y^{\prime }&=\frac {2 \left (y+2\right )^{2}}{\left (x +y+1\right )^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.721 |
|
| 23196 |
\begin{align*}
x^{\prime }&=-t x^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.728 |
|
| 23197 |
\begin{align*}
y^{\prime }+\frac {y}{\left (-x^{2}+1\right )^{{3}/{2}}}&=\frac {x +\sqrt {-x^{2}+1}}{\left (-x^{2}+1\right )^{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
19.730 |
|
| 23198 |
\begin{align*}
3 y+2 x +4-\left (4 x +6 y+5\right ) y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.737 |
|
| 23199 |
\begin{align*}
x^{2} y^{\prime \prime }+\left (x -2 x^{2} f \left (x \right )\right ) y^{\prime }+\left (x^{2} \left (1+f \left (x \right )^{2}-f^{\prime }\left (x \right )\right )-f \left (x \right ) x -v^{2}\right ) y&=0 \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
19.763 |
|
| 23200 |
\begin{align*}
x^{2} y^{\prime \prime }-5 y^{\prime } x +9 y&=2 x^{3} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
19.765 |
|