Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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Question

Let A = (see pic) ​, B = (see pic) ​, and C = (see pic). Verify that AB=AC and yet B doesnt = C.

4 - 6 8 - 2 - 8 and C = 3 Verify that AB =AC and yet B# C. 3 Let A = B = 7 - 8 12 Show the calculations that are used to find the entries for matrix AB. Choose the correct answer below. O A. - 8(8) + (- 6)(7) - 8(- 2) + (- 6)(7) 4(8) + 12(7) 4(- 2) + 12(7) Ов. 4(- 2) + (- 6)(7) 4(8) + (- 6)(7) - 8(- 2) + 12(7) - 8(8) + 12(7) C. 4(8) + 12(7) 4(- 2) + 12(7) - 8(8) + (- 6)(7) - 8(- 2) + (- 6)(7) OD. 4(8) + (- 6)(7) 4(- 2) + (- 6)(7) - 8(8) + 12(7) - 8(- 2) + 12(7)
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Transcribed Image Text:4 - 6 8 - 2 - 8 and C = 3 Verify that AB =AC and yet B# C. 3 Let A = B = 7 - 8 12 Show the calculations that are used to find the entries for matrix AB. Choose the correct answer below. O A. - 8(8) + (- 6)(7) - 8(- 2) + (- 6)(7) 4(8) + 12(7) 4(- 2) + 12(7) Ов. 4(- 2) + (- 6)(7) 4(8) + (- 6)(7) - 8(- 2) + 12(7) - 8(8) + 12(7) C. 4(8) + 12(7) 4(- 2) + 12(7) - 8(8) + (- 6)(7) - 8(- 2) + (- 6)(7) OD. 4(8) + (- 6)(7) 4(- 2) + (- 6)(7) - 8(8) + 12(7) - 8(- 2) + 12(7)
Show the calculations that are used to find the entries for matrix AC. Choose the correct answer below. O A. 4(- 8) + (- 6)(3) 4(2) + (-6)(3) - 8(- 8) + 12(3) - 8(2)+ 12(3) В. 4(2) + 12(3) 4(-8) + 12(3) - 8(2) + (- 6)(3) - 8(- 8) + (- 6)(3) - 8(2) + (- 6)(3) - 8(- 8) + (-6)(3) 4(2) + 12(3) 4(-8) + 12(3) D. 4(2) + (- 6)(3) 4(-8) + (- 6)(3) - 8(2) + 12(3) - 8(- 8) + 12(3) Verify that AB = AC by simplifying. AB = AC = (Type an integer or decimal for each matrix element.)
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Transcribed Image Text:Show the calculations that are used to find the entries for matrix AC. Choose the correct answer below. O A. 4(- 8) + (- 6)(3) 4(2) + (-6)(3) - 8(- 8) + 12(3) - 8(2)+ 12(3) В. 4(2) + 12(3) 4(-8) + 12(3) - 8(2) + (- 6)(3) - 8(- 8) + (- 6)(3) - 8(2) + (- 6)(3) - 8(- 8) + (-6)(3) 4(2) + 12(3) 4(-8) + 12(3) D. 4(2) + (- 6)(3) 4(-8) + (- 6)(3) - 8(2) + 12(3) - 8(- 8) + 12(3) Verify that AB = AC by simplifying. AB = AC = (Type an integer or decimal for each matrix element.)
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