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3 and 4 .Determinants and Matrices
easy
જો $A = \left[ {\begin{array}{*{20}{c}}2&5\\3&7\end{array}} \right]$ અને $B = \left[ {\begin{array}{*{20}{c}}0&3\\4&1\end{array}} \right],$તો
A
$|AB|\, = \,|A||B|$
B
$|AB|\, = \,|A|$
C
$|AB|\, = \,|B|$
D
$|AB|\, = - \,|A||B|$
Solution
(a) We know that if $ A, B $ are $n$ square matrices, then $|AB|\,\, = \,\,|A|\,\,|B|$.
Standard 12
Mathematics