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Mathematics
Mathematics
Problem
7. Let S be the sum, P the product and R the sum of reciprocals of
n
n
n
terms in a G.P. Prove that
P
2
R
n
=
S
n
\mathrm{P}^{2} \mathrm{R}^{n}=\mathrm{S}^{n}
P
2
R
n
=
S
n
.
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