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What is the center of the ellipse whose equation is (x2)/25 + (y2)/4 = 1?
Standard form of equation for an ellipse with horizontal major axis (a^2 under x^2):
(x-h)^2/a^2+(y-k)^2/b^2=1,a>b, (h,k)=(x,y) coordinates of the center.
For given equation, h and k do not appear in the equation, so it is assumed they are=0, that is, the coordinates of the center are (0,0)