Pertanyaan

D ik e t ah u i ma t r ik s A + 4 m u = ( 2 3 5 4 ) , B = ( − 1 4 0 2 ) , d an X = A − B . I n v ers ma t r ik s X a d a l ah ....

$D ik e t ah u i ma t r ik s A + 4 m u = (2354), B = (- 1 4 02), d an X = A - B . I n v ers ma t r ik s X a d a l ah ....$

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Jawaban terverifikasi

Pembahasan

$X to the power of negative 1 end exponent equals fraction numerator 1 over denominator open vertical bar X close vertical bar end fraction A d j left parenthesis X right parenthesis J i k a space X equals open parentheses table row a b row c d end table close parentheses comma space m a k a A d j left parenthesis X right parenthesis equals open parentheses table row d cell negative b end cell row cell negative c end cell a end table close parentheses space d a n space open vertical bar X close vertical bar equals a d minus b c J a d i comma X equals A minus B X equals open parentheses table row 2 5 row 3 4 end table close parentheses minus open parentheses table row cell negative 1 end cell 0 row 4 2 end table close parentheses X equals open parentheses table row 3 5 row cell negative 1 end cell 2 end table close parentheses S e h i n g g a comma X to the power of negative 1 end exponent equals fraction numerator 1 over denominator 6 minus left parenthesis negative 5 right parenthesis end fraction open parentheses table row 2 cell negative 5 end cell row 1 3 end table close parentheses equals 1 over 11 open parentheses table row 2 cell negative 5 end cell row 1 3 end table close parentheses$