1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

If the area of the ellipse is $$\frac{x^2}{25}+\frac{y^2}{\lambda^2}=1$$ is $$20 \pi$$ sq units, then $$\lambda$$ is

A
$$\pm 4$$
B
$$\pm 3$$
C
$$\pm 2$$
D
$$\pm 1$$
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The eccentricity of the ellipse $$9 x^2+25 y^2=225$$ is

A
$$\frac{3}{4}$$
B
$$\frac{4}{5}$$
C
$$\frac{9}{16}$$
D
$$\frac{3}{5}$$
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