AP EAMCET2011MathematicsDifferential Equations
The solution of the differential equation d y d x = y x + (y / x) ^ (y / x) is
Options
- Ax ( y x )=k
- B( y x )=k x
- Cy ( y x )=k
- D( y x )=k y
Correct answer
B. ( y x )=k x
Step-by-step solution
Given, d y d x = y x + ( y x ) ^ ( y x ) Put y=v x d y d x =v+x d v d x aligned & v+x d v d x =v+ (v) ^ (v) & ^ (v) (v) d v= d x x & aligned On integrating, we get gathered (v)= x+ k (v)=k x ( y x )=k x gathered