The equation 5x 2 + 6xy + 5y 2 8 = 0 represents an ellipse whose
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The equation 5x2 + 6xy + 5y2 – 8 = 0 represents an ellipse whose centre is at the origin. By considering the extrema of x2 + y2, obtain the lengths of the semi-axes.
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x y is the square of the distance from the origin to ...View the full answer
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