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Write the number of all possible matrices of order `2xx2`with each entry `1,2,or3.` |
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Answer» A `2xx2` order matrix will contain `4` elements. We have to create these matrices using `3` numbers that are `1`,`2` or `3`. So, total number of all possible matrices are `3^4 = 81`. Some of the examples of such matrices are, `[[1,2],[2,3]],[[1,1],[2,2]],[[3,3],[1,1]],` `[[1,1],[1,1]],[[2,2],[2,2]],[[3,3],[3,3]].` Similarly, we can create `81` matrices with these three numbers. |
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