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Please help- Coordinates of the foci?

Find the coordinates of the foci- How did you get it?


X^2/36 + x^2/9 = 1

2007-12-15 11:33:18 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

1 answers

c^2 = 36 - 9 = 27
c = 3 sqrt(3)
h = k = 0
foci = (0, +/- 3sqrt(3))

2007-12-15 11:40:49 · answer #1 · answered by norman 7 · 0⤊ 0⤋

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