Question

31.The equation of ellipse whose vertices are (5,0),(-5,0) and foci are (4,0),(-4,0) is. Single choice.

Answer 1

Step-by-step explanation:

since we know the general equation of an ellipse

i.e x²/a² + y²/b²=1

here a=5

c=4

since a²=b²+c²

5²=b²+4²

25=b²+16

b²=9

hence equation is

x²/25+y²/9=1

9x²+25y²=225