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जर , तर A4 चे मूल्य काय आहे?

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गणना:

दिलेले आहे: 

आता,

म्हणून पर्याय 1 हे योग्य उत्तर आहे.

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Q1.Consider the following in respect of the matrices  \(\rm P=\begin{bmatrix}0&c&-b\\\ -c&0&a\\\ b&-a&0\end{bmatrix}\ and\ \rm Q=\begin{bmatrix}a^2&ab&ac\\\ ab&b^2&bc\\\ ac&bc&c^2\end{bmatrix}\) I. PQ is a null matrix.  II. QP is an identity matrix of order 3.  III. PQ = QP Which of the above is/are correct? 
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Q4.Find the additive inverse of matrix A = \(\left[\begin{array}{cc}2 & 1 \\ −3 & 0\end{array}\right]\)
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Q1.What is A-1 equal to?  
Q2.What is A(adj A) equal to?  
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