Solve the System by Using the Inverse of the Coefficient $$\begin{array} { l } 3 x + y - 2 z - w = 8 \\- x + 2 y + z - 4 w = - 12 \\2 x - 2 y + 3 z + w = 8 \\- 2 x - y - z - 4 w = - 7\end{array}$$

question 365

Multiple Choice

Solve the system by using the inverse of the coefficient matrix.
- $$\begin{array} { l } 3 x + y - 2 z - w = 8 \\- x + 2 y + z - 4 w = - 12 \\2 x - 2 y + 3 z + w = 8 \\- 2 x - y - z - 4 w = - 7\end{array}$$

• A) \(\{ ( 3,2,1 , - 1 ) \}\)
• B) \(\{ ( 3 , - 2 , - 1,1 ) \}\)
• C) \(\{ ( 1 , - 3 , - 2 , - 1 ) \}\)
• D) \(\varnothing\)

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Definitions:

Neurotransmitter

Chemical substances that transmit signals from one neuron to another across synapses in the nervous system.

Tremors

Involuntary, rhythmic muscle movements that cause shaking in one or more parts of the body, often affecting the hands.

Myelin Sheath

A fatty material that covers and insulates some axons to allow for faster movement of electrical impulses along the axon.

Epinephrine

Epinephrine, also known as adrenaline, is a hormone and neurotransmitter involved in the body's fight-or-flight response, increasing heart rate, muscle strength, blood pressure, and sugar metabolism.