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Mathematics
Mathematics
Problem
20. Show that the products of the corresponding terms of the sequences
a
,
a
r
,
a
r
2
a, a r, a r^{2}
a
,
a
r
,
a
r
2
, ...
a
r
n
−
1
a r^{n-1}
a
r
n
−
1
and
A
,
A
R
,
A
R
2
,
…
A
R
n
−
1
\mathrm{A}, \mathrm{AR}, \mathrm{AR}^{2}, \ldots \mathrm{AR}^{n-1}
A
,
AR
,
AR
2
,
…
AR
n
−
1
form a G.P, and find the common ratio.
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