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Question
The number of possible matrices of order 3 × 3 with each entry 2 or 0 is
Options
9
27
81
none of these
Solution
In a matrix of order 3 × 3, there are 9 elements.
Each element of the matrix have two options (either 2 or 0).
Hence, total number of possible matrices are 29.
Hence, the correct option is (d).
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