JEE Main 20248 Apr, Morning shiftMathematicsMediumMatrices and Determinants245× since 2002Let A=[2−111]A=\left[\begin{array}{cc}2 & -1 \\ 1 & 1\end{array}\right]A=[21−11]. If the sum of the diagonal elements of A13A^{13}A13 is 3n3^n3n, then nnn is equal to ________.Your answerType your answer. Integers and decimals are accepted.CheckSkip · show solution