Asked by Aaron

the foci of the ellipse given by the equation 100x2 + 25y2 = 2500?
Answered by Steve
x^2/25 + y^2/100 = 1

the major axis is vertical.
a = 10
b = 5
c^2 = a^2-b^2 = 75

The foci are at (0,±c)
Answered by kelly
x^2/25+y^2/100=1
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