If , find the values…

MATHEMATICS · Multi-part · CBSE · Mathematics · Determinants · Determinants

Problem

If A=[−1111−1111−1]A=\begin{bmatrix}-1&1&1\\1&-1&1\\1&1&-1\end{bmatrix}, find the values of: (1) (i) ∣A∣adj⁡A|A|\operatorname{adj}A (2) (ii) ∣adj⁡(3A)∣|\operatorname{adj}(3A)| (3) (iii) ∣adj⁡(adj⁡(adj⁡A))∣|\operatorname{adj}(\operatorname{adj}(\operatorname{adj}A))|

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