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

Mathematics

1 answer:

____ [38]3 years ago

6 0

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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Step-by-step explanation