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দৃশ্যকল্প: ( A= left[a_ i j right]_ 3 times 3 ; ) যেখানে ( a_ i j =2 i-j ) ( I_ 3 = left[ begin array lll 1 & 0 & 0 0 & 1 & 0 0 & 0 & 1 end array right] ) এবং ( f(x)=x^ 2 +3 x ) | Suva Ai