and $\mathrm{A}, \mathrm{B}$ are $3 \times 3$ matrices,
Hence $|\mathrm{A}|=0 \Rightarrow\left|\mathrm{A}^{4} \mathrm{B}^{3}\right|=0 \Rightarrow \mathrm{A}^{4} \mathrm{B}^{3}$ is singular
$\left| {\begin{array}{*{20}{c}} {{{\log }_e}\,a_1^ra_2^k}&{{{\log }_e}\,a_2^ra_3^k}&{{{\log }_e}\,a_3^ra_4^k} \\ {{{\log }_e}\,a_4^ra_5^k}&{{{\log }_e}\,a_5^ra_6^k}&{{{\log }_e}\,a_6^ra_7^k} \\ {{{\log }_e}\,a_7^ra_8^k}&{{{\log }_e}\,a_8^ra_9^k}&{{{\log }_e}\,a_9^ra_{10}^k}\end{array}} \right| = 0 $
તો ગણ $S$ માં રહેલા ઘટકોની સંખ્યા મેળવો.