Mathematics · 2021
JEE Main · 4 August 2021, Shift 2 · Q83
If A= [1, 0, 0; 1, 1, 0; 1, 1, 1], the sum of the entries of A^20 is \ \ \ \.
If $\displaystyle A=\left[\begin{array}{lll}1 & 0 & 0 \\ 1 & 1 & 0 \\ 1 & 1 & 1\end{array}\right]$, the sum of the entries of $\displaystyle A^{20}$ is \_\_\_\_.
Official answer
253
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