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If A=[a(i j)] is a 3xx3 scalar matrix su...

If `A=[a_(i j)]` is a `3xx3` scalar matrix such that `a_(11)=2` , then write the value of `|A|` .

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Given, `A=[a_(i j)]` is a `3xx3` scalar matrix and `a_(11)=2`
A scalar matrix is a matrix of order m which is equal to a constant `lameda` multiplied with the Identity matrix of order m.
Since `a_(11) = 2`, hence `λ = 2` and `m = 3`
Hence `A=2 xx I=2[[1,0,0],[0,1,0],[0,0,1]]`
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