3 years ago

PLEASE, I NEED HELP ASAP

1 answer:

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stich3 [128]

Step-by-step explanation:

Since AB=I, we have

det(A)det(B)=det(AB)=det(I)=1.

This implies that the determinants det(A) and det(B) are not zero.

Hence A,B are invertible matrices: A−1,B−1 exist.

Now we compute

I=BB−1=BIB−1=B(AB)B−1=BAI=BA.since AB=I

Hence we obtain BA=I.

Since AB=I and BA=I, we conclude that B=A−1.

5 0

3 years ago

garik1379 [7]

Answer: 12 times

Step-by-step explanation: 105 - 45 for initial fee is 60 then you divide that by 5 for 12

7 0

3 years ago

Verdich [7]

Hope this will help u..✌

4 0

4 years ago

zloy xaker [14]

Answer:

x = 9

y = -10

Step-by-step explanation:

7 0

3 years ago

Elodia [21]

(6^2)__>__(-6^2)

-5__=__ |-5|

0.372×1,000__<__37.2×100

3 0

2 years ago