Find the Inverse of the Matrix $\left[ \begin{array} { c c } 4 & - 5 \\ 1 & 5 \end{array} \right]$

question 91

Multiple Choice

Find the inverse of the matrix $\left[ \begin{array} { c c } 4 & - 5 \\ 1 & 5 \end{array} \right]$ (if it exists) .

• A) \(- \frac { 1 } { 25 } \left[ \begin{array} { c c } 5 & 5 \\ - 1 & 4 \end{array} \right]\)
• B) \(\frac { 1 } { 25 } \left[ \begin{array} { c c } 5 & 5 \\ - 1 & 4 \end{array} \right]\)
• C) \(\frac { 1 } { 25 } \left[ \begin{array} { c c } - 5 & - 5 \\ 1 & - 4 \end{array} \right]\)
• D) \(\frac { 1 } { 25 } \left[ \begin{array} { c c } 4 & - 5 \\ 1 & 5 \end{array} \right]\)
• E) does not exist

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Definitions:

Rhyming Words

Words that have the same ending sound, often used in poetry, songs, and language learning.

Medium-Term Stores

Describes a stage in the memory process where information is held for a period longer than short-term memory but is not yet transferred to long-term memory.

Sensory

Relating to sensation or the physical senses; transmitting or perceiving stimuli or sensory information.

Long-Term Stores

Another term for long-term memory, it refers to the component of the memory system capable of storing large amounts of information indefinitely.