Find a matrix B such that $B^5 = A$
86841
Find a matrix $B$ such that $B^3 = A$
145980
For every matrix $A\in M_{2}( \mathbb{C}) $ there's  $X\in M_{2}( \mathbb{C})$ such that $X^2=A$?
114185
Existence of $x$ such that $2^x =a,3^x=b,5^x=c$ for some integers $a,b,c$
140252
Matrices - Conditions for $AB+BA=0$
143689
Real $2\times 2$ matrix $X$ such that $X^2 + 2X= -5I$
55787
Is there any matrix $2\times 2$ such that $A\neq I$ but $ A^3=I$?
49330
If for two suitable matrices $B$ and $C$, $AA^TB=AA^TC$ can we conclude that $A^TB=A^TC$?
1398
Find eigen values of $B = \begin{bmatrix} 0 & A^* \\ A &0 \end{bmatrix}$
4017
factorize $x^5+ax^3+bx^2+cx+d$ if $d^2+cb^2=abd$
95669
Solutions of $|z| = z^5$ in $\Bbb{C}$?
55159
Find all matrices that commute with given matrix
122622
Does there exist a matrix $P$ such that $P^n=M$ for a special matrix $M$?
151443
Find two $2 \times 2$ matrices $A$ and $B$ with the same rank, determinant,...but they are not similar.
31149
Prove that matrix can be square of matrix with real entries
84400
Build a Companion Matrix of a Polynomial?
110256
Let $a,b \in {\mathbb{Z_+}}$ such that $a|b^2, b^3|a^4, a^5|b^6, b^7|a^8 \cdots$, Prove $a=b$
33253
Find high powers of a matrix with the Cayley Hamilton theorem