An infinite geometric series has a1=100a_1 = 100a1=100 and r=−0.1r = -0.1r=−0.1. Does it converge?
Yes, because ∣r∣<1|r| < 1∣r∣<1
No, because r<0r < 0r<0
Yes, because r<1r < 1r<1
No, because ∣r∣>1|r| > 1∣r∣>1