- #1
linda300
- 61
- 3
hey,
i'm having trouble with this question,
x y' - y = x2cosx
the solution is
y= xc + xsinx
and we are asked to solve the equation in the following two cases,
1, y(0)=0
and 2, y(0) = 1
but applying these conditions to the general solution gives no information,
in both cases its 0 = 0, so doing this you can't find the constant.
is there another way to solve the equation for these conditions?
even mathematica can't solve it, but it was a question in a test and i was marked wrong for saying neither cases can be solved (as in the constant can't be found)
thanks
i'm having trouble with this question,
x y' - y = x2cosx
the solution is
y= xc + xsinx
and we are asked to solve the equation in the following two cases,
1, y(0)=0
and 2, y(0) = 1
but applying these conditions to the general solution gives no information,
in both cases its 0 = 0, so doing this you can't find the constant.
is there another way to solve the equation for these conditions?
even mathematica can't solve it, but it was a question in a test and i was marked wrong for saying neither cases can be solved (as in the constant can't be found)
thanks