Find for a GP whose first term is and common ratio .

MATHEMATICS · Single correct · CBSE · Mathematics · Sequences and Series · Sequences and Series

Problem

Find

S_6

for a GP whose first term is

8

and common ratio

\dfrac12

. (a)

\dfrac{31}{2}

(b)

\dfrac{127}{8}

(c)

\dfrac{63}{4}

(d)

\dfrac{63}{8}