Question

What are the explicit equation and domain for a geometric sequence with a first term of 4 and a second term of −12?

an = 4(−3)n − 1; all integers where n ≥ 1
an = 4(−3)n − 1; all integers where n ≥ 0
an = 4(36)n − 1; all integers where n ≥ 1
an = 4(36)n − 1; all integers where n ≥ 0

Answer 1

@dan815

Answer 2

@nincompoop

Answer 3

HELPP