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( A= left[ begin array ccc a^ 2 & b c & c a+c^ 2 a^ 2 +a b & b^ 2 & c a a b & b^ 2 +b c & c^ 2 end array right] ) একটি নির্ণায়ক এবং ( g(x)=x^ 2 +3 x ). | Suva Ai