In a geometric sequence with a1=1a_1 = 1a1=1, what is the smallest nnn such that Sn>1.99S_n > 1.99Sn>1.99 if r=0.5r = 0.5r=0.5?
n=6n = 6n=6
n=7n = 7n=7
n=8n = 8n=8
n=9n = 9n=9