Question 1059556
Find circular section of  paraboloid 13y^2+4z^2=2x
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It's a paraboloid, so there is no circular section.
Any intersection of the paraboloid and a plane containing the x-axis is a parabola.
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It the coefficients of y^2 and z^2 were equal, the intersections of the paraboloid and planes normal to the x-axis would be circles.