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Sindrei [870]
3 years ago
6

I need help with 26 and 28​

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
7 0

Answer:

Step-by-step explanation:

THE DETERMINANT IS:

c=ad-bc, where we have the matrix  a  b

                                                             c   d

C=16-(-20)=16+20=36

c for 28  c=(-1/2 *8)-(-4)=-4+4=8

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