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Using Gaussian Elimination to solve 3X3 systems of equations

Solving a system of three linear equations in 3 unknowns using Gaussian Elimination (or Gauss-Jordan algorithm) in 5 stages. Solutions are all integers. Introductory question where the numbers come out quite nice with not much dividing. Set-up is meant for formative assessment. Adapated from a question copied from Newcastle.

Solving a system of three linear equations in 3 unknowns using Gaussian Elimination (or Gauss-Jordan algorithm) in 5 stages. Solutions are all integers. Introductory question where the numbers come out quite nice with not much dividing. Set-up is meant for formative assessment. Adapated from a question copied from Newcastle.

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Crear una tabla de verdad para una expresión lógica de la forma $ a \ {op} \ b $ donde $ a, \; b $ pueden ser las variables booleanas $ p, \; q, \; \neg p$  y  $\neg q $ y  $\ {op}$ puede ser uno de los operadores $ \lor, \; \land, \; \to $.

Por ejemplo $ \neg q \to \neg p $.