3 and 4 .Determinants and Matrices
easy

The value of $\left| {\,\begin{array}{*{20}{c}}{{5^2}}&{{5^3}}&{{5^4}}\\{{5^3}}&{{5^4}}&{{5^5}}\\{{5^4}}&{{5^5}}&{{5^7}}\end{array}\,} \right|$ is

A

${5^2}$

B

$0$

C

${5^{13}}$

D

${5^9}$

Solution

(b) Taking out $5$ from ${R_2}$ makes ${R_2} = {R_1}$.

Standard 12
Mathematics

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