In my attempt in using MATLAB to solve for the general solution and particular solution when y$(1)=1$ of the question as shown in the picuture, $y^{\text{'}}=\frac{x^2+3xy}{3x^2}.$ The following are my codings:

syms x y; $\%$ Define symbolic variables

syms ode;

syms sol;

$\%$ Define the ODE

ode $=($x$^2+3*$x$*$y$)/(3*$x$^2)$;

$\%$ Separate variables using manual method, then input into here

eqn $=$ int$(1/($x$^2+3*$x$*$y$),$ y$)==$ int$(1/(3*$x$^2),$ x$)$;

$\%$ Solve the equation

sol $=$ dsolve$($eqn$)$;

$\%$ Display the general solution

disp$(\text{'}$General Solution:$\text{'})$;

disp$($sol$)$;

$\%$ Define the initial condition

initial$\_$condition $=$ sol.subs$($x$,1)==1$;

$\%$ Solve for the constant of integration

constant $=$ solve$($initial$\_$condition$)$;

$\%$ Substitute the constant into the general solution to find the particular solution

particular$\_$solution $=$ sol.subs$($constant$)$;

$\%$ Display the particular solution

disp$(\text{'}$Particular Solution:$\text{'})$;

disp$($particular$\_$solution$)$;

However, it outputs errors as shown below, i don't know where did i do wrong. Please correct and teach me$.$

Error using mupadengine$/$feval$2$sym$\_$NaNsingularity

No differential equations found. Specify differential equations by using symbolic functions.

Error in dsolve$>$mupadDsolve $($line $334)$

T $=$ feval$2$sym$\_$NaNsingularity$($symengine$,$'symobj::dsolve',sys$,$x$,$options$)$;

Error in dsolve $($line $203)$

sol $=$ mupadDsolve$($args$,$ options$)$;

Error in ODE$\_$Q$1($line $12)$

sol $=$ dsolve$($eqn$)$;

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