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মান নির্ণয় কর : ( left lvert begin matrix 1 & 1 & 1 a & 2 b & 3 c a^ 2 - 3 a c & 4 b^ 2 - 3 a c & 9 c^ 2 - 2 a b end matrix right rvert ) (abc≠0) | Suva Ai