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If I3 denotes identity matrix of orde...

If `I_3` denotes identity matrix of order `3xx3` , write the value of its determinant.

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Given,`i_3=[[1,0,0],[0,1,0],[0,0,1]]`
,`|i_3|=abs([1,0,0],[0,1,0],[0,0,1])`
Expanding along `R_1`
`|I_3| = 1(1 × 1 - 0) = 1`
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