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Let A = (ai,j) be a 3 × 5 matrix and let B = (bi,j) be a 5 × 4 Which of the following is the (2,2) entry of AB? O O a1,2 + b1,4 + a2,2b2,4 + a3,203,4 a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2 + a2,5b5,2. a2,1b1,2 + a2,2b2,2 + A2,3b3,2 + a2,4b4,2. a1,2b1,2 + a2,3b2,3 + a3,3b3,3 + a4,3b4,3.

Let A = (ai,j) be a 3 × 5 matrix and let B = (bi,j) be a 5 × 4 Which of the following is the (2,2) entry of AB? O O a1,2 + b1,4 + a2,2b2,4 + a3,203,4 a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2 + a2,5b5,2. a2,1b1,2 + a2,2b2,2 + A2,3b3,2 + a2,4b4,2. a1,2b1,2 + a2,3b2,3 + a3,3b3,3 + a4,3b4,3.

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Let A = (ai,j) be a 3 × 5 matrix and let B = (bį,j) be a 5 × 4 Which of the following is the (2,2) entry of AB? a1,2 + b1,4 + a2,2b2,4 + a3,2b3,4 a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2 + a2,5b5,2. a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2. a1,2b1,2 + a2,3b2,3 + α3,3b3,3 + α4,3b4,3.
Transcribed Image Text:Let A = (ai,j) be a 3 × 5 matrix and let B = (bį,j) be a 5 × 4 Which of the following is the (2,2) entry of AB? a1,2 + b1,4 + a2,2b2,4 + a3,2b3,4 a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2 + a2,5b5,2. a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2. a1,2b1,2 + a2,3b2,3 + α3,3b3,3 + α4,3b4,3.
Expert Solution
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Given: A=a1,1a1,2a1,3a1,4a1,5a2,1a2,2a2,3a2,4a2,5a3,1a3,2a3,3a3,4a3,5 and B=b1,1b1,2b1,3b1,4b2,1b2,2b2,3b2,4b3,1b3,2b3,3b3,4b4,1b4,2b4,3b4,4b5,1b5,2b5,3b5,4

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