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3. Let f(X) = X2 - 7X + 6.Find f(A) if A = [ X1 + X2 - X3 2x4 + x5 2x1 +

3. Let f(X) = X2 - 7X + 6.Find f(A) if A = [ X1 + X2 - X3 2x4 + x5 2x1 + 3x2 X3 7x4 + 4x5 - - 2x1 + 4x2 10x4 + 6x5 = 0 = 0 = 0

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