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The number of all possible matrices of order 2 × 3 with entries -1 or 1 is |
64 6 32 16 |
64 |
The correct answer is Option (1) → 64 Each entry can be either $-1$ or $1$. Total entries in a $2\times 3$ matrix = $6$. Each entry has 2 choices ⇒ total matrices = $2^{6}$. $2^{6}=64$ The number of such matrices is $64$. |
