Solve the systems using either Gaussian Elimination or Gauss-Jordan Elimination. (a) 3x − y = −1 5x − 2y = −3   (b) y − z = −1 x + 3y − 2z = 0 2x + 2y + z = 9.

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Q: last step is where I don't understand how do you get the 138 from  54975581388 mod 143?

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Q: 9-) Find and test the partial sum of the given series it for convergence : n=1 (₁^) (2+0+ (-1)^ 2^

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Q: Considere os vetores A₁ = [1 2 1] A₂ = [-1 3 4] ¹, A3 = [ 0 1 -1 ]¹eb = [ −3_1_1]¹. Quais os valores…

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