ODE uu x 0 Solution Function u2 x2 10 Verify that the fo
ODE: uu\' + x = 0 Solution Function: u^2 + x^2 = 10; Verify that the following function is a solution to the ODE
Solution
We have u^2 + x^2 = 10
=> u^2 = 10 - x^2
=> 2*u*(du/dx) = -2*x {taking differntiation w.r.t x on both sides} eqn 1
dividing eqn 1 by 2 and substituting u\' = du/dx, we get
u*u\' = -2*x
=>uu\' + 2x = 0 which is same as given ODE
Hence verified.
