The eccentricity of the hyperbola x^2-y^2=25 is - Vidyadip

MCQ

The eccentricity of the hyperbola $x^2-y^2=25$ is

✓
$\sqrt{2}$
B
$\frac{1}{\sqrt{2}}$
C
2
D
$1+\sqrt{2}$

✓

Answer

Correct option: A.

$\sqrt{2}$

(A)
$\begin{array}{l}\frac{x^2}{25}-\frac{y^2}{25}=1
\\ \text { Eccentricity }=\sqrt{2} \text { as } a = b .\end{array}$

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