AP EAMCET · Maths · Determinants
\(\left|\begin{array}{lll}125 & 5 & 25 \\ 343 & 7 & 49 \\ 729 & 9 & 81\end{array}\right|=\)
- A \(9 !\)
- B \(6 !\)
- C \(8 !\)
- D \(7 !\)
Answer & Solution
Correct Answer
(D) \(7 !\)
Step-by-step Solution
Detailed explanation
\(\left|\begin{array}{lll}125 & 5 & 25 \\ 343 & 7 & 49 \\ 729 & 9 & 81\end{array}\right|\) Applying \(R_1 \rightarrow \frac{1}{5} R_1, R_2 \rightarrow \frac{1}{7} R_2, R_3 \rightarrow \frac{1}{9} R_3\)…
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