Find the Indicated Matrix $A = \left[ \begin{array} { r r r } 6 & 4 & 1 \\ 12 & 2 & - 1 \\ - 4 & 2 & 3 \end{array} \right]$

question 14

Multiple Choice

Find the indicated matrix.
-Let $A = \left[ \begin{array} { r r r } 6 & 4 & 1 \\ 12 & 2 & - 1 \\ - 4 & 2 & 3 \end{array} \right]$ and $B = \left[ \begin{array} { r r r } 10 & - 4 & 1 \\ - 4 & 0 & 2 \\ 3 & 3 & - 2 \end{array} \right]$ . Find $A - B$ .

• A) \(\left[ \begin{array} { r r r } - 4 & - 8 & 0 \\ 16 & 2 & - 3 \\ - 7 & 1 & 5 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r r } - 4 & 0 & 0 \\ 16 & 2 & - 3 \\ 1 & - 1 & 1 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r r } 16 & 0 & 2 \\ 8 & 2 & 1 \\ - 1 & 5 & 1 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r r } - 4 & 8 & 0 \\ 16 & 2 & - 3 \\ - 7 & - 1 & 5 \end{array} \right]\)

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Definitions:

Sigmund Freud

An Austrian neurologist who is best known for founding psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.

Super-Ego

The strict and demanding part of the mind.

Ego

In psychoanalytic theory, it represents the part of the mind that mediates between the conscious and the unconscious and is responsible for reality testing and a sense of personal identity.

Unconscious Mind

Refers to the part of the mind that is not currently in focal awareness, containing thoughts, memories, and desires that are not readily accessible but influence behavior.