Question

Find the eccentric of ellipse 9x^2+y^2=225

Answer 1

Answer:

9x2+y2=225

Step 1: Add -y^2 to both sides.

9x2+y2+−y2=225+−y2

9x2=−y2+225

Step 2: Divide both sides by 9.

9x29

=−y2+2259x2=−19

y2+25

Step 3: Take square root.

x=√−19

y2+25 or x=−√−19

y2+25

Answer:

x=√−19

y2+25 or x=−√−19

y2+25