WBJEE · Maths · Matrices
If \(M\) is any square matrix of order 3 over \(R\). and if \(M^{\prime}\) be the transpose of \(M\), then \(adj\left(M^{\prime}\right)-(\text { adj } M)^{\prime}\) is equal to
- A \(M\)
- B \(M{'}\)
- C null matrix
- D identity matrix
Answer & Solution
Correct Answer
(C) null matrix
Step-by-step Solution
Detailed explanation
\begin{aligned} &\begin{aligned} \text { Since, } \operatorname{adj}\left(M^{\prime}\right)=&(\operatorname{adj} M)^{\prime} \\ =& \operatorname{adj}\left(M^{\prime}\right)-(\operatorname{adj} M)^{\prime} \\ &\left[\because…
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