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Question
Let α =
and A =
, then B = A + A
2
+ A
3
+ A
4
is
Options
A.
Singular
B.
Non-singular
C.
Symmetric
D.
det (B) = 1
Solution
We have
A
2
=
A
3
=
A
4
=
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, then B = A + A2 + A3 + A4 is and A = , then B = A + A2 + A3 + A4 is and A = , then B = A + A2 + A3 + A4 is
