document.write( "Question 193077: Explain how to find the foci of an ellipse given the coordinates of its vertices and co-vertices? \n" ); document.write( "
Algebra.Com's Answer #144970 by Mathtut(3670)\"\" \"About 
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use the equation \"c%5E2=a%5E2%2Bb%5E2\" where a and b are the vertices and co vertices and c is coordinate of the foci. \n" ); document.write( "
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