JEE MAIN - Mathematics Hindi (2023 - 12th April Morning Shift - No. 2)

माना $$\mathrm{A}=\left[\begin{array}{cc} 1 & \frac{1}{51} \\ 0 & 1 \end{array}\right]$$ है। यदि $$\mathrm{B}=\left[\begin{array}{cc} 1 & 2 \\ -1 & -1 \end{array}\right] \mathrm{A}\left[\begin{array}{cc} -1 & -2 \\ 1 & 1 \end{array}\right]$$ है, तो $$\sum_\limits{n=1}^{50} B^n$$ के सभी अवयवों का योग है:
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