Find the Inverse of the Matrix $$\left[ \begin{array} { r r } 4 & 0 \\- 1 & - 1\end{array} \right]$$

question 131

Multiple Choice

Find the inverse of the matrix.
- $$\left[ \begin{array} { r r } 4 & 0 \\- 1 & - 1\end{array} \right]$$

• A) \(\left[ \begin{array} { c c } \frac { 1 } { 4 } & 0 \\ - \frac { 1 } { 4 } & - 1 \end{array} \right]\)
• B) \(\left[ \begin{array} { c c } - 1 & 0 \\ - \frac { 1 } { 4 } & \frac { 1 } { 4 } \end{array} \right]\)
• C) \(\left[ \begin{array} { c c } \frac { 1 } { 4 } & 0 \\ \frac { 1 } { 4 } & - 1 \end{array} \right]\)
• D) No inverse

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Definitions:

ABAB Designs

A type of experimental design used in behavioral research involving sequential phases to compare the effect of a variable.

Multiple-Baseline Designs

Multiple-baseline designs are experimental methods used to demonstrate the effect of an intervention across different settings, behaviors, or individuals by introducing the intervention at different times.

Internal Validity

The extent to which a study can demonstrate that a causal relationship exists between the variables tested, free from the influence of extraneous variables.

Intervention Phases

Different stages or segments in a research study or clinical trial where specific interventions or treatments are applied.