AP EAMCET2002MathematicsDifferential Equations
The solution of d y d x + 1 3 y=1 is
Options
- Ay=3+c e^ x / 3
- By=3+c e^ -x / 3
- C3 y=c+e^ x / 3
- Dy^2+x+x^2+2=c e^ 2 x
Correct answer
B. y=3+c e^ -x / 3
Step-by-step solution
We have, array rlrl & d y d x + y 3 & =1 & & d y & =- (y-3) 3 d x & d y y-3 & =- 1 3 d x array aligned & (y-3)=- 1 3 x+ c & y-3=c e^ -x / 3 y=3+c e^ -x / 3 aligned