Geometric sequence
2,4,8...7th?
Answer (1)
2, 4, 8,...7thformula:an= a1r^(n-1) r- common ratio= a1/a2= 4/2= 2a7= 2(2)^(7-1)a7= 2(2)^(6)a7= 2(36)a7= 128
2, 4, 8,...7thformula:an= a1r^(n-1) r- common ratio= a1/a2= 4/2= 2a7= 2(2)^(7-1)a7= 2(2)^(6)a7= 2(36)a7= 128
