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Using a Calculator to Perform Matrix Operations

Avg difficulty 2.5

Find AB−C A B - C given

A=[ −15 25 32 41 −7 −28 10 34 −2 ],B=[ 45 21 −37 −24 52 19 6 −48 −31 ],and C=[ −100 −89 −98 25 −56 74 −67 42 −75 ]. A = \begin{bmatrix} −15 & 25 & 32 \\ 41 & −7 & −28 \\ 10 & 34 & −2 \end{bmatrix} , B = \begin{bmatrix} 45 & 21 & −37 \\ −24 & 52 & 19 \\ 6 & −48 & −31 \end{bmatrix} , \text{and}\textrm{ } C = \begin{bmatrix} −100 & −89 & −98 \\ 25 & −56 & 74 \\ −67 & 42 & −75 \end{bmatrix} .

OpenStax Algebra and Trigonometry 2e, 11.5 Matrices and Matrix Operations, exercise 21

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.