Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B2

Chapter

Financial Mathematics

Question:

If $A=\begin{bmatrix} 4 & 5 & 2\\3 & -1 & 7 \end{bmatrix},$ then the sum of the elements of the matrix $AA^T$ is :

Options:

156

164

146

136

Correct Answer:

146