Question
सारणिक $\left| {\,\begin{array}{*{20}{c}}1&a&{b + c}\\1&b&{c + a}\\1&c&{a + b}\end{array}\,} \right|$ का मान है
$({C_2} \to {C_2} + {C_3}) = 0, $
$(\because \,\,{{C}_{1}}\equiv {{C}_{2}})$
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