Question 927237: Find the equation of an ellipse with center at the origin and passes through points [3, sqrt(7)] and [-sqrt(3), 3] Answer by ewatrrr(24785) (Show Source):
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.....points [3, sqrt(7)] and [-sqrt(3), 3]
9/a^2 + 7/b^2 = 1 -3(3/a^2 + 9b^2 = 1)
-20/b^2) = -2
b^2 = 10
.......
9/a^2 + 7/10 = 1
9/a^2 = 3/10
a^2 = 30
.........
