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Let A=\left[\beginarrayll1 & 2 \\ 0 & 1\endarray\right] and B=I+\operatornameadj(A)+(\operatornameadj A)^2+\ldots+(\operatornameadj A)^10. Then, the sum of all the elements of the matrix | Watch the step-by-step video solution for this NIMCET PYQ.