Respostas

2013-03-17T17:01:04-03:00

 

 Det = \left[\begin{array}{ccc}2&-3&1\\-6&5&1\\M&5&1\end{array}\right] = 0 10-3m -30 -5m -10 +18=0 -8m -12 = 0 -8m=12 m=12/-8 m= - 1,5

Espero ter ajudado ;)

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