Determine If the Sequence Is Monotonic and If It Is $$a _ { n } = \frac { 3 ^ { n } } { ( 3 n ) ! }$$

question 144

Multiple Choice

Determine if the sequence is monotonic and if it is bounded.
- $$a _ { n } = \frac { 3 ^ { n } } { ( 3 n ) ! }$$

• A) nondecreasing; bounded
• B) decreasing; bounded
• C) increasing; unbounded
• D) not monotonic; bounded

---

Definitions:

Neurotransmitter

Chemical messengers that transmit signals across a chemical synapse, from one neuron to another target neuron, muscle cell, or gland cell.

Anandamide

An endocannabinoid, naturally produced in the body, that binds to cannabinoid receptors and affects mood, appetite, and pain sensation.

Dopamine

A neurotransmitter in the brain associated with pleasure, movement, and the reward system.

Serotonin

A neurotransmitter involved in regulating mood, appetite, and sleep, among other functions.