( A = left [ begin matrix 1 & 2 & 2 end matrix right ] , B = left [ begin matrix 1 2 - 1 end matrix right ] , C = left [ begin matrix 2 & 1 2 & - 1 end matrix right ] ) উদ্দীপকের ক্ষেত্রে - i. ( A^ T = left [ begin matrix 1 2 2 end matrix right ] ) ii.|C| = - 4 iii. C এর Adjoint matrix ( left [ begin matrix - 1 & - 1 - 2 & 2 end matrix right ] ) নিচের কোনটি সঠিক ?