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Exam (elaborations)
Linear Algebra and Its Applications (Chapter 2) Exam Questions and answers
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Linear Algebra and Its Applications (Chapter 2) Exam Questions and answers the (i,j)-entry of A - If A is an mxn matrix-that is a matrix with m rows and n columns-then the scalar entry in the its row and nth column of A is denoted by aij. Ex: a32 is in the third row and 2 column. Diagonal Entries (in a matrix) - Any diagonal movement through matrix from left to right Ex: a11,a22,a33,...,ann or a12,a23,a34,... Main Diagonal (of a matrix) - The entries with equal row and column indices. diagonal matrix - a square nxn matrix whose non diagonal entries are zero
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