The differential equation representing the family of ellipses with centre at origin and foci on x-axis is given as
A. xy’ + y = 0
B. x2y2(y”)2 + yy’= 0
C. xyy” + x(y’)2 – yy’ = 0
D. None of these
Answer:B
The differential equation representing the family of ellipses with centre at origin and foci on x-axis is given as
A. xy’ + y = 0 B. x2y2(y”)2 + yy’= 0 C. xyy” + x(y’)2 – yy’ = 0 D. None of these