1.

Mathematically, what is the equation of ellipse?

A. x<sup>2</sup>/a<sup>2</sup> + y<sup>2</sup>/b<sup>2</sup> = -1
B. x<sup>2</sup>/a<sup>2</sup> y<sup>2</sup>/b<sup>2</sup> = 1
C. x<sup>2</sup>/a<sup>2</sup> + y<sup>2</sup>/b<sup>2</sup> = 1
D. x<sup>2</sup>/a<sup>2</sup> y<sup>2</sup>/b<sup>2</sup> = 1
Answer» D. x<sup>2</sup>/a<sup>2</sup> y<sup>2</sup>/b<sup>2</sup> = 1


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