Question

The eccentricity of ellipse $36x^2+4y^2=144$ is

• A.
• B.
• C. 2/3
• D. 1/2

Answer 1

The correct option is B

The equation of ellipse is $\frac{x^2}{4}+\frac{y^2}{36}=1$

Eccentricity e = $\frac{\sqrt{b^2-a^2}}{b}$ = $\frac{2\sqrt{2}}{3}$