Solve using Gauss-Jordan elimination. 27x, 18 3x,+8x,- 4x1 +3x2- 13x3 = 1 Xq+ X2 - 4x3 = 1 Select the correct choice below and fill in O A. The unique solution is x, =

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Q: - 15. f(x) = x° (x =3)' (x +1) f(x) = -3x(x-2)'(x-1) 16. HE 17. f(x) = 4x°(x-1)° (x+2)

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