Bài 1. Cho ma trận 1

A= 1

1

1

2 1

1

2

-1

Chứng minh A khả nghịch. Tim ma trận nghịch đảo của Á

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

x=0

step-by-step explanation: