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Suppose the first two columns, b1 and b2 of B are equal. What can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.

Suppose the first two columns, b1 and b2 of B are equal. What can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.

Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.CT: Chapter Test
Problem 5CT: A commuter must travel from Ajax to Barrie and back every day. Four roads join the two cities. The...
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Suppose the first two columns, b1 and b2 of B are equal. WWhat can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.
Transcribed Image Text:Suppose the first two columns, b1 and b2 of B are equal. WWhat can you say about the columns of AB (if AB is defined) Why? A. The first two columns of AB will be equal only if the first two rows of A are equal. B. The first two columns of AB are Ab1 and Ab2, They are equal since b1 and b2 are Equal. C. The first two columns of AB will be equal only if the first two columns of A are equal. D. Nothing can be determined about the columns of AB since the entries of A are unknown.
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