Given a sequence formula find the first four terms with alternating signs

The video tutorial explains how to determine the first four terms of a sequence using a formula. It emphasizes the importance of showing work to avoid mistakes and highlights the pattern of alternating signs in the sequence. Each term is calculated step-by-step, demonstrating the process and the resulting values.

What is the result of substituting 1 into the sequence formula?

• 1

• -1

• 0

• 2

Why is it important to show your work when solving these types of problems?

• To make it look complicated

• To save time

• To avoid mistakes

• To impress the teacher

What is the result of substituting 2 into the sequence formula?

• -2

• 2

• -3

• 3

What is the result of substituting 3 into the sequence formula?

• 5

• -5

• 4

• -4

What pattern is observed in the signs of the sequence terms?

• The signs are random

• The signs alternate between positive and negative

• All terms are negative

• All terms are positive