The first two terms of a geometric sequence are and .

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

Problem

The first two terms of a geometric sequence are

u_1 = 2.1

and

u_2 = 2.226

. (1) Find the value of

r

. (2) Find the value of

u_{10}

. (3) Find the least value of

n

such that

S_n > 5543