Recent content by tigrus

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    Radiation & nuclear physics, linear attenuation Co-60, Cs-137-

    Hello there. I've been struggling with this one for quite a long time now and decided to ask if any of you people could point out what I'm missing here. There are actually three problems which are related to each other. I managed to solve the first and the second one, but the third is where I...
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    Which are the pivot columns? - Linear Algebra

    Homework Statement Given matrix A= 1 1 -2 1 3 2 -1 2 2 6 3 2 -4 -3 -9 x= x1 x2 x3 x4 x5 b = 1 2 3 1. Solve the system by elimination (use the augmented matrix) until pivots are found (no backward elimination here). 2. Show that pivots...
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