Question

38. If (x, y, z),(x2, Y2, 2) and (x3, Yz, zz) are the vertices of an equilateral triangle such that
(x, -2)? + -3) + (Z - 4)? = (x, -2) +, -3) + (Z, -4) = (x3 - 2) + (ν, -3)2 + (Z3 - 4)
then Σcos(2α -β-γ)= 3
then Σκ, +2Σ +3Σ​

Answer 1

"Z3" (and any subsequent words) was ignored because we limit queries to 32 words.

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