21/4.41/8.81/16.161/32.... upto infinity is equal to : 1)1 2)1.5 3)2 4)2.5 Share with your friends Share 1 Priyanka Kedia answered this Refer the link: https://www.meritnation.com/ask-answer/question/prove-that-2-1-4-4-1-8-8-1-16-16-1-32-upto-i/sequences-and-series/3238001 1 View Full Answer