JEE Main2011MathematicsDifferential EquationsActual
If d y d x =y+3>0 and y(0)=2 , then y( 2) is equal to
Options
- A5
- B13
- C-2
- D7
Correct answer
D. 7
Step-by-step solution
d y d x =y+3 d y y+3 =d x (y+3)=x+cx=0 y=2 5=0+cc= 5 (y+3)=x+ 5y+3=e^ x+ 5 y+3=e^ 2+ 5 y+3=10 y=7