Find the first three terms of the sequence defined by an = 4n − 2 (separated by a comma).

Answer 1

a_n = 4n - 2

a₁ = 4• 1 - 2 = 2 a₂ = 4 • 2 - 2 = 6 a₃ = 4 • 3 - 2 = 10 a₄ = 4 • 4 - 2 = 14

∴ First four terms of a_n = 4n - 2

2 , 6 , 10 , 14

Answer 2

Substitute 1, 2, and 3 for n and simplify