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Diketahui matriks , tentukan nilai dari adj C x C adalah…

Diketahui matriks C equals open parentheses table row 1 2 3 row 2 3 2 row 3 3 4 end table close parentheses , tentukan nilai dari adj C x C adalah…

  1. -7 I

  2. 7 I

  3. 6 I

  4. 8 I

  5. 1 I

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A. Acfreelance

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K o f a k t o r space C equals open parentheses table row cell plus open vertical bar table row 3 2 row 3 4 end table close vertical bar end cell cell negative open vertical bar table row 2 2 row 3 4 end table close vertical bar end cell cell plus open vertical bar table row 2 3 row 3 3 end table close vertical bar end cell row cell negative open vertical bar table row 2 3 row 3 4 end table close vertical bar end cell cell plus open vertical bar table row 1 3 row 3 4 end table close vertical bar end cell cell negative open vertical bar table row 1 2 row 3 3 end table close vertical bar end cell row cell plus open vertical bar table row 2 3 row 3 2 end table close vertical bar end cell cell negative open vertical bar table row 1 3 row 2 2 end table close vertical bar end cell cell plus open vertical bar table row 1 2 row 2 3 end table close vertical bar end cell end table close parentheses space space space space space space space space space space space space space space space space space space space space space space space space equals open parentheses table row cell 12 minus 6 end cell cell negative left parenthesis 8 minus 6 right parenthesis end cell cell 6 minus 9 end cell row cell negative left parenthesis 8 minus 9 right parenthesis end cell cell 4 minus 9 end cell cell negative left parenthesis 3 minus 6 right parenthesis end cell row cell 4 minus 9 end cell cell negative left parenthesis 2 minus 6 right parenthesis end cell cell 3 minus 4 end cell end table close parentheses space space space space space space space space space space space space space space space space space space space space space space space space equals open parentheses table row 6 cell negative 2 end cell cell negative 3 end cell row 1 cell negative 5 end cell 3 row cell negative 5 end cell 4 cell negative 1 end cell end table close parentheses A d j space C equals open parentheses K o f space C close parentheses to the power of T space space space space space space space space space space space space equals open parentheses table row 6 1 cell negative 5 end cell row cell negative 2 end cell cell negative 5 end cell 4 row cell negative 3 end cell 3 cell negative 1 end cell end table close parentheses A d j space C space cross times C equals open parentheses table row 6 1 cell negative 5 end cell row cell negative 2 end cell cell negative 5 end cell 4 row cell negative 3 end cell 3 cell negative 1 end cell end table close parentheses open parentheses table row 1 2 3 row 2 3 2 row 3 3 4 end table close parentheses space space space space space space space space space space space space space space space space space space space space space equals open parentheses table row cell 6 plus 2 minus 15 end cell cell 12 plus 3 minus 15 end cell cell 18 plus 2 minus 20 end cell row cell negative 2 minus 10 plus 12 end cell cell negative 4 minus 15 plus 12 end cell cell negative 6 minus 10 plus 16 end cell row cell negative 3 plus 6 minus 3 end cell cell negative 6 plus 9 minus 3 end cell cell negative 9 plus 6 minus 4 end cell end table close parentheses space space space space space space space space space space space space space space space space space space space space equals open parentheses table row cell negative 7 end cell 0 0 row 0 cell negative 7 end cell 0 row 0 0 cell negative 7 end cell end table close parentheses space space space space space space space space space space space space space space space space space space space space equals negative 7 open parentheses table row 1 0 0 row 0 1 0 row 0 0 1 end table close parentheses space space space space space space space space space space space space space space space space space space space space equals negative 7 space I

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Tentukan determinan dan adjoin dari matriks berikut. d. D = ⎝ ⎛ ​ 1 0 4 ​ − 2 5 0 ​ − 1 0 − 2 ​ ⎠ ⎞ ​

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Tentukan invers matriks-matriks berikut! f. K = ⎝ ⎛ ​ 2 − 4 3 ​ 0 − 1 0 ​ − 5 8 7 ​ ⎠ ⎞ ​

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