# Locus

• Apr 5th 2010, 05:18 AM
banku12
Locus
\$\displaystyle \textup{Consider hyperbola S::xy+7x+5y=0.}\$

\$\displaystyle \textup{If an ellipse touches the asymptotes of the curve S=0,}\$

\$\displaystyle \textup{then the eccentricity of locus of centre of the ellipse is??}\$

sorry by mistake i posted in the rong forum...plzz move it to the correct one
• Apr 5th 2010, 10:54 PM
earboth
Quote:

Originally Posted by banku12
\$\displaystyle \textup{Consider hyperbola S::xy+7x+5y=0.}\$

\$\displaystyle \textup{If an ellipse touches the asymptotes of the curve S=0,}\$

\$\displaystyle \textup{then the eccentricity of locus of centre of the ellipse is??}\$

sorry by mistake i posted in the rong forum...plzz move it to the correct one

Sorry, but the text of this question doesn't make sense to me: The asymptotes of the hyperbola are the straight lines with the equations y = -5
and x = -7.

You have to specify the form of the ellipse in question (ratio of the axes, geometric properties of the center, etc). Otherwise I can't help you.