Consider the geometric sequence 160, 80, 40, 20, ....

MATHEMATICS · Multi-part · CBSE · Mathematics · Sequences and Series · Sequences and Series

Problem

Consider the geometric sequence 160, 80, 40, 20, .... (1) Find, in decimal form, the 8th term of the sequence. (2) Find the sum of the first 8 terms of the sequence. (3) How many terms are required for the sum of the terms to exceed 319.9?

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