Question #12500063

proof tasks in mathematics?

A regular n-gon a_1,.., a_n is inscribed in a circle of radius R; let X be a point on this circle. Prove X(A_1)^4 + ... + X(A_n)^4 = 6nR^4 please help. I do not know how to do that.

2013-12-14 20:32:14

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