Question: Cannot use Sparsearray Need to know how to code this. Solve using Wolfram Mathematica coding system. The first two pictures are the matrix being talked

Cannot use Sparsearray  Cannot use Sparsearray Need to know how to code this. Solve

Need to know how to code this. Solve using Wolfram Mathematica coding system. The first two pictures are the matrix being talked about in questions 1 and 2 For instance, set A to yhe tridtagonal matrix with entriesu0.5 on the iagonal, ,i-,-ai,i+1 (-0.25 on the super diagonal and sub diagonal and aeros elsewhere. Next, take b to have ith entry equal to 1/i. The radius if I-B.A is approximately 0.998

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