Mathematics · Matrices
Let A = [a1][a2] and B = [b1][b2] be two 2 × 1 matrices with real entries such that A = XB, where X = 1√3 [1 -1][1 k], and k ∈ R. If a12 + a22 = 23(b12 + b22) and (k2 + 1)b22 ≠ -2b1b2, then the value of k is:
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