InterviewSolution
Saved Bookmarks
| 1. |
Find the real value of `m`for which the substitution `y=u^m`will transform the differentialequation `2x^4y(dy)/(dx)+y^4=4x^6`in to a homogeneous equation. |
|
Answer» `y=u^(m)` or `(dy//dx) = mu^(m-1)(du)/(dx)` The given differential equation becomes `2x^(4).u^(m). Mu^(m-1)(du)/(dx) +u^(4m)=4x^(6)` for homogenous equation, degree of each term should be same in the numerator and the denominator. Hence, `6=4m=4+2m-1` or `m=3//2` |
|