How to find the first four terms of a sequence

The video tutorial explains how to define the first four terms of a sequence involving negative one raised to various powers. It demonstrates the process of evaluating each term by substituting values into the sequence formula. The tutorial highlights the concept of alternating signs when negative numbers are raised to even or odd powers, explaining that even powers result in positive values while odd powers result in negative values. The video concludes by emphasizing the importance of understanding this relationship in sequences.

What is the result of -1 raised to the fourth power plus 3?

Explain why a negative number raised to an even power is always positive.