Select all statements below which are true for all invertible n×n matrices a and b
a. ab=ba <...
Mathematics, 25.08.2019 06:00 jzjzjzj
Select all statements below which are true for all invertible n×n matrices a and b
a. ab=ba
b. (a+b)(a−b)=a^2−b^2
c. a+a^−1 is invertible
d. a^3b^8 is invertible
e. (aba^−1)^4=ab^4a^−1
f. (a+a^−1)^9=a^9+a^−9
Answers: 1
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