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If  and the equation  represents an ellipse, then  belongs to the interval

a)

b)

c)

d)



Question ID - 102695 | SaraNextGen Top Answer

If  and the equation  represents an ellipse, then  belongs to the interval

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

The equation  represents an ellipse having foci at  and  and major axis 3. If  is the eccentricity of this ellipse, then

But,

 and

 and

But,  Therefore,

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