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document.write( "Hi,
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document.write( "Standard Form of an Equation of an Ellipse is
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document.write( "where Pt(h,k) is the center and vertices are determined by distance of a and b from center
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document.write( " (x-1)^2/21 + (y-3)^2/4 = 1 sqrt(21) = 4.58
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document.write( "center is (1, 3), vertices are (5.58, 3) and (-3.58,3). minor axis is x=1
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document.write( "sqrt(21 - 4) = sqrt(17)= 4.12 Foci are:(5.12,3) and (-3.12,3)\r
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