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Which value of x makes the two matrices inverses of each other?

Which value of x makes the two matrices inverses of each other?
asked 214k views
5 votes
Which value of x makes the two matrices inverses of each other?

asked
User Pshirishreddy
by
8.7k points

2 Answers

5 votes

Answer:

-2

Explanation:

answered
User Alanna
by
7.7k points
2 votes

Answer: The answer is A. -2

Explanation:

[5 2] [1 -2]

[2 1 ] [x 5]

answered
User Jeremy Lakeman
by
7.7k points
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