State the constant value of the sum of the distances from any point on the ellipse to…

MATHEMATICS · Subjective · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

State the constant value of the sum of the distances from any point on the ellipse

\dfrac{x^{2}}{a^{2}}+\dfrac{y^{2}}{b^{2}}=1

to its two foci.