Mark M. answered • 04/30/21

Mathematics Teacher - NCLB Highly Qualified

B is the inverse of A iff AB = I

Can you multiply and demonstrate?

Aerin H.

asked • 04/30/21A = -1/2 -5/4 B = 8 5

1 2 -4 -2

To show that *B* is the inverse of *A*, we need to show that *AB* = *I* = *BA*.

AB = -4 + ___ -5/2 + ___ = ____ ____

8 + ___ 5 + ___ ____ ____

BA = -4 + ___ -10 + ___ = ____ ____

2 + ___ 5 + ___ ____ ____

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Mark M. answered • 04/30/21

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Mathematics Teacher - NCLB Highly Qualified

B is the inverse of A iff AB = I

Can you multiply and demonstrate?

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