hyperbooooooola

JEE Main 2015 Discussion Forum › Co-ordinate Geometry questions › hyperbooooooola

for a hyperbola with x-axis as the axis which the hyperbola intersects, why do why bother to find (0,Â±b).

#Mathematics #Co-ordinate Geometry

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5 Answers

62

Lokesh Verma ·2008-11-30 08:15:35

What's the question dude!!! I dont understand what u meann!

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Anirudh Narayanan ·2008-11-30 14:35:03

Consider (x²/a²)-(y²/b²) =1.
this intersects x-axis at (Â±a,0) and doesn't intersect y-axis at all. So why do we find (0,Â±b) ?????????

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62

Lokesh Verma ·2008-11-30 17:20:41

what do u mean find (0,Â±b) !!!

It is a fixed point already!!!

If you are asking for the physical significance.. it is a different question!

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skygirl ·2008-11-30 19:12:59

YES THIS WAS MY QUESTION... AN EVER UNANSWERED DOUBT...
WAT IS THIS 'b' IN THE EQUATION??

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Prashant Shekhar ·2008-11-30 20:23:14

'b' is actually a derived term which is used to give an analogy to the form of equation used for ellipse.
bâ‰¡√c²-a²
'c' being focal distance

see for reference
http://mathworld.wolfram.com/Hyperbola.html

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