InterviewSolution
Saved Bookmarks
| 1. |
Which of the following differential equations has y = x as one of its particular solution?(A) \(\frac{d^2y}{dx^2} - x^2\frac{dy}{dx} + xy = x\)(B) \(\frac{d^2y}{dx^2} + x\frac{dy}{dx} + xy = x\)(C) \(\frac{d^2y}{dx^2} - x^2\frac{dy}{dx} + xy = 0\)(D) \(\frac{d^2y}{dx^2} + x^2\frac{dy}{dx} + xy = 0\) |
|
Answer» Answer is (C) y = x y1 = 1 y2 = o this is satisfied by y2 – x2 y, + xy = 0 0 – x2 . 1 + x . x = 0 |
|