coundoooku
coundoooku coundoooku
  • 27-06-2018
  • Mathematics
contestada

I have this question and I need it done bad... Help please? Picture included I was never taught matrix

I have this question and I need it done bad Help please Picture included I was never taught matrix class=

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Luv2Teach
Luv2Teach Luv2Teach
  • 27-06-2018
Multiply the numbers on the major axis which are 2 and -9 to get -18.  Subtract from that 3*4 = 12.  So -18-12 = -30.  That's the determinant.
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