Question: please solve step by step all questions. 18. Matrix |2 2 + 2 Matrix | 1 2|equals A. |2 21 B. 1 C.121 31 D.

please solve step by step all questions.

18. Matrix |2 2 + 2 Matrix | 1 2|equals A. |2 21 B. 1 C.121 31 D. 19 19. Transpose the Matrix ON NHWONW O A. 19 2 -2 B INO 20. The inverse matrix - | is A. Matrix B. Matrix |7 1 C. Matrix | | D. Matrix| | 21. Find A-1 if A = NWI WIN WAN 3 0 -2 1-3 0 -21 N O A. B. 1/3 1/3 2/3 C. 1/3 1/3 2/3 INW NWO W W W UINN 7/3 1/3 5/3 17/3 1/3 5/3 01 0 22. If A and B 1 0 what is A time B equal to? 0 16 7 O N NWO OVO UN W A. Oo + B. HOO 9 ol C. 8 4 D. 1 1

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