- #1
mech-eng
- 828
- 13
There is differential equation with initial condition perplexing me.
y'+ y = 1, y = ce^-x + 1 , y = 2.5 when x = 0
First I take derivative of y which is -ce^-x then I sum it up with y which is -ce^-x+ce^-x + 1 equals 1 which is in harmony with y' + y = 1 but it
seems that this is independent from integral constant c and so there are infinite number of c but in the answer c is -1.5.
Have a nice day.
y'+ y = 1, y = ce^-x + 1 , y = 2.5 when x = 0
First I take derivative of y which is -ce^-x then I sum it up with y which is -ce^-x+ce^-x + 1 equals 1 which is in harmony with y' + y = 1 but it
seems that this is independent from integral constant c and so there are infinite number of c but in the answer c is -1.5.
Have a nice day.