In the relation that defines an ellipse

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

In the relation (x+c)2+y2+(x−c)2+y2=2a\sqrt{(x+c)^{2}+y^{2}}+\sqrt{(x-c)^{2}+y^{2}}=2a that defines an ellipse, what does the symbol aa represent? (a) Length of the semi-minor axis (b) Distance of each focus from the centre (c) Length of the semi-major axis (d) Length of the entire major axis

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