yilian152511 yilian152511 24-01-2024 Mathematics contestada Which function could be used to represent the sequence 8, 20, 50, 125, 312.5...., given that a1 = 8? (1) an = an-1 + a1 (2) an=2.5(an-1) (3) an= a1+1.5(an-1) (4) an= (a1)(an-1)