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Mathematics LibreTexts

9.4E: Matrices and Matrix Operations (Exercises)

( \newcommand{\kernel}{\mathrm{null}\,}\)

For the following exercises, perform the requested operations on the given matrices.
A=\left[\begin{array}{rr} 4 & -2 \\ 1 & 3 \end{array}\right], B=\left[\begin{array}{rrr} 6 & 7 & -3 \\ 11 & -2 & 4 \end{array}\right], C=\left[\begin{array}{cc} 6 & 7 \\ 11 & -2 \\ 14 & 0 \end{array}\right], D=\left[\begin{array}{rrr} 1 & -4 & 9 \\ 10 & 5 & -7 \\ 2 & 8 & 5 \end{array}\right], E=\left[\begin{array}{rrr} 7 & -14 & 3 \\ 2 & -1 & 3 \\ 0 & 1 & 9 \end{array}\right]

39. -4 A
40. 10 D-6 E
41 . B+C
42. A B
43. B A
44. B C
45. C B
46. D E
47. E D
48. E C
49. C E
50. A^{3}


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