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The tangent at a point  on the hyperbola  passes through the point () and the normal at  passes through the point  then eccentricity of the hyperbola is

a)

2

b)

c)

3

d)



Question ID - 55901 | SaraNextGen Top Answer

The tangent at a point  on the hyperbola  passes through the point () and the normal at  passes through the point  then eccentricity of the hyperbola is

a)

2

b)

c)

3

d)

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

(b)

Equation of tangent at  is

It passing through  So,

Equation of normal is

Which passes through . Hence,

Now lies on the hyperbola

127 votes


127