Question

Help? :c
What are the explicit equation and domain for a geometric sequence with a first term of 5 and a second term of −10?

an = 5(−2)n − 1; all integers where n ≥ 1

an = 5(−2)n − 1; all integers where n ≥ 0

an = 5(−15)n − 1; all integers where n ≥ 1

an = 5(−15)n − 1; all integers where n ≥ 0

Answer 1

@phi

Answer 2

@ganeshie8 @mathslover

Answer 3

Can you help? c: