Need reassurance on "implicit" and "explicit" form

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
1 reply · 2K views
shamieh
Messages
538
Reaction score
0
When dealing with this separable equation for example, if I'm told to solve the given D.E.

$y' = x^2/y$

so after manipulation and taking the integral I got $\frac{y^2}{2} = \frac{x^3}{3} + C$ This is the implicit form correct?

Would the explicit form be $y = \sqrt{\frac{2}{3} x^3 + C}$
 
Physics news on Phys.org
shamieh said:
When dealing with this separable equation for example, if I'm told to solve the given D.E.

$y' = x^2/y$

so after manipulation and taking the integral I got $\frac{y^2}{2} = \frac{x^3}{3} + C$ This is the implicit form correct?

Correct. :D

shamieh said:
Would the explicit form be $y = \sqrt{\frac{2}{3} x^3 + C}$

I would write:

$y = \pm\sqrt{\frac{2}{3}x^3+C}$