KCET2013MathematicsDifferential Equations
If m and n are order and degree of the differential equation (y^ )⁵+4 (y^ )³ y^ +y^ = x , then
Options
- Am=3, n=5
- Bm=3, n=1
- Cm=3, n=3
- Dm=3, n=2
Correct answer
D. m=3, n=2
Step-by-step solution
Given differential equation is, ( d² y d x² )⁵+4 ( d² y d x² )³ ( d³ y d x³ ) + ( d³ y d x³ )= x ( d² y d x² )⁵ ( d³ y d x³ )+4 ( d² y d x² )³+ ( d³ y d x³ )²= x ( d³ y d x³ ) Now, m= order = highest order derivative =3 and n= degree = power of highest order derivative =2