The number of all possible matrices of order 2 × 2 with each entry 0, 1 or 2 are.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 81 **
Each entry of a $2\times 2$ matrix can be $0$, $1$, or $2$ → 3 choices.
Total entries = 4.
Total number of possible matrices:
$3^{4}=81$
The total number of such matrices is 81.