Question: (a) Find the 1 1, 2 2, and 3 3 matrices with i, j entry given by i + j. (b) Find

(a) Find the 1 × 1, 2 × 2, and 3 × 3 matrices with i, j entry given by i + j.
(b) Find the determinant of the square matrix with i, j entry i + j.

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