AP EAMCET2001MathematicsHyperbola
The products of lengths of perpendiculars from any point of hyperbola x^2-y^2=8 to its asymptotes, is
Options
- A2
- B3
- C4
- D8
Correct answer
C. 4
Step-by-step solution
We have the asymptotes are x^2-y^2=0 x= y i.e. x+y=0 and x-y=0 The product of length of perpendiculars = ( x-y 1^2+1^2 ) ( x+y 1^2+1^2 )= x^2-y^2 2 2 = 8 2 =4