Question

What are the explicit equation and domain for a geometric sequence with a first term of 3 and a second term of −9?

Answer 1

an = 3(−12^)n − 1; all integers where n ≥ 1

an = 3(−12)^n − 1; all integers where n ≥ 0

an = 3(−3)^n − 1; all integers where n ≥ 1

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

Answer 2

@Hero

Answer 3

@ParthKohli @dpaInc @campbell_st @thomaster

Answer 4

@robtobey @Luigi0210

Answer 5

@ganeshie8