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 Discussion Response Post to:
circles
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| Author |
Message |
![[Post New]](/templates/default/images/icon_minipost_new.gif) 1 Apr 2008 14:08:11 IST
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1) The circle is given by S + uL =0
=> x^2 + y^2 - a^2 + u(x cos a + y sin a -p) =0
This circle will pass through the 0,0. Why?(Ask if you dont get it)
Put 0,0 in the equation and get u. Then put u back into the equation.
2) Circle is not imaginary as radius >0.
Centre is (2,1). So shortest distance is [Distance of the point from centre] - [Radius]
and longest distance is [Distance of the point from centre] + [Radius]
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Let us learn to dream, gentlemen, and then perhaps we shall learn the truth.
- August Kekule |
this reply: 5 points
(with 1 
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Moderation Team
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