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Mathematics
Mathematics
Problem
If
k
k
k
geometric means are inserted between two positive numbers
a
a
a
and
b
b
b
(
a
≠
0
)
(a\neq0)
(
a
=
0
)
so that
a
,
G
1
,
…
,
G
k
,
b
a,\,G_1,\dots,G_k,\,b
a
,
G
1
,
…
,
G
k
,
b
form a geometric progression, what is the common ratio of the progression? a)
(
b
/
a
)
1
/
k
(b/a)^{1/k}
(
b
/
a
)
1/
k
b)
(
b
/
a
)
1
/
(
k
+
1
)
(b/a)^{1/(k+1)}
(
b
/
a
)
1/
(
k
+
1
)
c)
b
/
a
\sqrt{\,b/a\,}
b
/
a
d)
1
+
b
−
a
a
(
k
+
1
)
1+\dfrac{b-a}{a\,(k+1)}
1
+
a
(
k
+
1
)
b
−
a
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