Find and classify the relative extrema and saddle points of the function 
for 
and 
Definitions:
Axon
A fiber that extends from a neuron and transmits electrochemical impulses from that neuron to the dendrites of other neurons.
Neuron
A specialized cell of the nervous system responsible for transmitting signals throughout the body, crucial for brain function and nervous system activity.
Sleeping Practice
Refers to the habits or routines associated with achieving restorative sleep, including duration, environment, and behaviors surrounding sleep.
Sleep Cycle
The pattern of phases that the brain and body go through during sleep, including stages of light sleep, deep sleep, and REM (rapid eye movement) sleep.
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