EllipseHard
Question
The equation ax2 + 2hxy + by2 + 2gx + 2fy + c = 0 represents an ellipse if-
Options
A.ᐃ = 0, h2 < ab
B.ᐃ ≠ 0, h2 < ab
C.ᐃ ≠ 0, h2 > ab
D.ᐃ ≠ 0, h2 = ab
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