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A point P moves so that the sum of squares of its distances from the points (1, 2) and (–2, 1) is 14. Let f(x, y) = 0 be the locus of P, which intersects the x-axis at the points A, B and the y-axis at the points C, D. Then the area of the quadrilateral ACBD is equal to

1. 2 9
2. 2 17 3
3. 4 17 3
4. 9

Correct answer: 2 17 3

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