Question

For the following G.P.s, find S
i) 3,6, 12, 24, ...
ii) p, q, ...
iii) 0.7, 0.07, 0.007, ....
iv) V5, -5,5 15,-25...
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Answer 1

Answer:

for 1st one:

given

r=2

a=3

sum of gp =a(r to the power n -1)

______________________

r-1

3(2n-1)

_______

2

and so on

Answer 2

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