If is the chord of contact of the hyperbola , then the equation of the corresponding pair of tangent is |
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a) |
b) |
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c) |
d) |

If is the chord of contact of the hyperbola , then the equation of the corresponding pair of tangent is |
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a) |
b) |
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c) |
d) |

1 Answer

127 votes

**(b)**

Let a pair of tangents be drawn from point to hyperbola

Then chord of contact will be

(i)

But the given chord contact is

(ii)

As Eqs. (i) and (ii) represents the same line, theses equation should be identical and hence

Therefore, the equation of pair of tangents drawn from (1, 0) to is

(using )

127 votes

127