- Home
- Standard 12
- Mathematics
3 and 4 .Determinants and Matrices
easy
શ્રેણિક $A = \left[ {\begin{array}{*{20}{c}}1&{ - 3}&{ - 4}\\{ - 1}&{\,\,\,3}&{\,\,4}\\1&{ - 3}&{ - 4}\end{array}} \right]$ માટે $A^n=o$ તો $n$ મેળવો.
A
$2$
B
$3$
C
$4$
D
$6$
Solution
(a) Since ${A^2} = O$ (Zero matrix) and $2$ is the least $+ve $ integer for which ${A^2} = O$.
Thus, $A$ is nilpotent of index $ 2.$
Standard 12
Mathematics
Similar Questions
normal