If $$D=diag$$⁡$$d1$$,$$d2$$,$$d3$$,…,dn, where di≠$$0$$ for all i $$=1$$,$$2$$,.. n, then $$D-1$$ is equal to

Correct option is 2diag⁡d1−1,d2−1,…,dn−1

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If $D = diag (d_{1}, d_{2}, d_{3}, \dots, d_{n}),$ where $d_{i} \neq 0$ for all i =1,2,.. n, then D^-1 is equal to

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detailed solution

Correct option is B

D=diagd1,d2,d3,…,dn, D=d1d2d3...…dn AdjD=diagd2d3...…dn,d1d3...…dn,.........,d1d2d3...…dn-1 D-1=AdjDD=diagd1−1,d2−1,…,dn−1

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If D=diag⁡d1,d2,d3,…,dn, where di≠0 for all i =1,2,.. n, then D-1 is equal to

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If $D = diag (d_{1}, d_{2}, d_{3}, \dots, d_{n}),$ where $d_{i} \neq 0$ for all i =1,2,.. n, then D^-1 is equal to