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Mathematics 14 Online
OpenStudy (anonymous):

Let A_1, A_2,..., A_12 be twelve equally spaced points on a circle with radius 1. Find (A_1 A_2)^2 + (A_1 A_3)^2 + ...+ (A_11+A_12)^2. (The sum includes the square of the distance between any pair of points, so the sum includes 66 terms. Can someone help me with this problem? Will fan and medal!

Nnesha (nnesha):

I like ur username. lol

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