If values of for which the line touches the hyperbola are roots of the equation , then value of is equal to |
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a) |
2 |
b) |
4 |
c) |
Zero |
d) |
None of these |

If values of for which the line touches the hyperbola are roots of the equation , then value of is equal to |
|||||||

a) |
2 |
b) |
4 |
c) |
Zero |
d) |
None of these |

1 Answer

127 votes

**(c)**

Equation of hyperbola is

Equation of tangent is

sum of roots = 0

127 votes

127