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Let  and  where , be two points on the hyperbola . If  is the point of intersection of the normals at  and , then  is equal to

a)

b)

c)

d)


Question ID - 56693 | Toppr Answer

Let  and  where , be two points on the hyperbola . If  is the point of intersection of the normals at  and , then  is equal to

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (d) -

(d)

Normals at  are

Where  and these pass through . Therefore,

and

Eliminating , we have



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