Given matrix A =
[
−
12
6
−
18
9
]
\displaystyle {\left[\begin{array}{cc} -{12}&{6}\\-{18}&{9}\end{array}\right]}
[
−
12
−
18
6
9
]
.
Find the eigenvalues of the matrix
A
3
\displaystyle {A}^{{3}}
A
3
.
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\displaystyle
Enter your answer as a list of complex numbers in a+bi form separated with commas. Example: 2+5i,-3-4i
Enter each value as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity