20.) compute each matrix sum or product it it is denied, if an expressio is undefined explain why let A= let 0-37 -4 1²+ A = [ ²₂ 9₂²] B = 6:²74 101] C = 4-42 -4-3. 1-11 4 --4- D=[131] EC] -23 compute matrix sum A+ 413 Compute Matrix śum 4c-2E Computz matix product of DB compute matrix product of EB 2

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