Math 1300 Midterm 2008 - Mathematics MATH1300 Vectors Geometry and Linear Algebra Midterm Examination 5:306:30pm 1(20(a Solve by Gauss-Jordan

Math 1300 Midterm 2008 - Mathematics MATH1300 Vectors...

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Mathematics MATH1300 Vectors Geometry and Linear Algebra Midterm Examination October 20, 2008, 5:30–6:30pm 1. (20%)(a) Solve byGauss-JordanElimination:2x-4y-6z=23x+ 5y+ 2z=-8 (b) Solve the following system of linear equationsusing Cramer’srule:4x1-11x2=52x1-5x2=2 2. (15%) LetA=123-1-2-3,B=120-1and-201. If the given expression is defined, calculate theresulting matrix or value.Otherwise, give a reason why it does notexist. 3

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