3 and 4 .Determinants and Matrices
easy

यदि $A = \left[ {\begin{array}{*{20}{c}}1&0&1\\0&1&1\\1&0&0\end{array}} \right]$, तब $A$ है

A

सममित

B

विषम सममित

C

व्युत्क्रमणीय

D

अव्युत्क्रमणीय

Solution

(c) $\Delta  = \left[ {\begin{array}{*{20}{c}}1&0&1\\0&1&1\\1&0&0\end{array}} \right] =  – 1 \ne 0$, अत: आव्यूह व्युत्क्रमणीय है।

Standard 12
Mathematics

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