Thread: A problem about singular points of conic
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Old January 13th, 2009, 04:43 AM
chipai chipai is offline
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Default A problem about singular points of conic
Let a(x)^2+bxy+c(x)^2+dx+ey+f=0be a conic.
Prove that if
( 2a b d )
( b 2c e ) = M , det(M) is nonzero
( d e 2f )

,then this conic has no singular point.

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