编写程序 y=dsolve('D3y-D2y=x','y(1)=8,Dy(1)=7,D2y(2)=4','x') 是为了求微分方程( )的解。
A.
y'''−y''= x, y(1) = 8, y'(1) = 7, y'(2) = 4
B.
y'''−y'= x, y(1) = 8, y'(1) = 7, y''(2) = 4
C.
y''−y''= x, y(1) = 8, y'(1) = 7, y''(2) = 4
D.
y'''−y''= x, y(1) = 8, y'(1) = 7, y''(2) = 4