Find the Inverse of the Matrix $\left[ \begin{array} { c c } 2 & 1 \\- 4 & - 2\end{array} \right]$

question 104

Essay

Find the inverse of the matrix $\left[ \begin{array} { c c } 2 & 1 \\- 4 & - 2\end{array} \right]$ , if it exists.

Comprehend the significance of research objectives within the problem definition step.

Understand the types and applications of observation research in marketing.

Learn the applications of sales tracking and its importance in the distribution function.

Distinguish between types of marketing research (e.g., exploratory, causal, observational).