medium · GMAT Quant
A signal-amplitude tracker is defined so that a_1=2, a_2=1, and a_n=a_n-1-a_n-2 for n≥ 3.
What is a_5?
- -2
- -1
- 2
- 3
- 1
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?