Write the First Four Terms of the Sequence Whose General $$a _ { n } = n ^ { 2 } - n$$

question 9

Multiple Choice

Write the first four terms of the sequence whose general term is given.
- $$a _ { n } = n ^ { 2 } - n$$

• A) \(2,6,12,20\)
• B) \(0,2,6,12\)
• C) \(1,4,9,16\)
• D) \(0,3,8,15\)

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Definitions:

Compulsion

The irresistible urge to perform an act repeatedly, often as a way of relieving anxiety, which constitutes part of obsessive-compulsive disorder.

Obsession

Persistent and intrusive thoughts, images, or urges that cause significant anxiety or discomfort.

Checking Behaviour

A type of compulsive behavior characterized by the need to check things repeatedly.

Hallucination

A perception in the absence of external stimuli, manifesting in any of the five senses.