Question

The simplification of
1/8 + 1/8^2 + 1/8^3 + 1/8^4 + 1/8^5

upto three-places of decimals yields
(1) 0.143
(2) 0.163
(3) 0.215
(4) 0.715

the denominator is a gp. is there a quick method to solve such queations?​

Answer 1

Answer:

(1) 0.143 is the answer for your question