Question

is used to format the background of a slide with a single color.​

Answer 1

Answer:

2

⇒

x

2

y

=C,

Differentiating

x

4

x

2

y

′

−2xy

=0

⇒y

′

=

x

2y

Replacing

dx

dy

by −

dy

dx

, we have y

′

=

2y

−x

⇒2ydy+xdx=0

⇒y

2

+

2

1

x

2

=constant

which represent a family of ellipses.