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Byju's Answer
Standard XII
Mathematics
AM,GM,HM Inequality
If A 1 , A...
Question
If
A
1
,
A
2
be two arithmetic means and
G
1
,
G
2
be two geometric means between two numbers
a
and
b
, then
A
1
+
A
2
G
1
G
2
is equal to:
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Solution
#
A
1
and
A
2
are arithmetic means
between a and b,
So,
A
1
+
A
2
=
a
+
b
[sum of r term from
beginning & (n-r) th term
from end is equal
to a+b]
#
G
1
and
G
2
are geometric means
between a and b
So,
G
1
.
G
2
=
a
b
[Product of
r
t
h
term
from beginning and
(
n
−
r
)
t
h
term from end
is equal to ab]
Now,
A
1
+
A
2
G
1
×
G
2
=
a
+
b
a
b
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0
Similar questions
Q.
If
A
1
,
A
2
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G
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,
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be two geometric means between two positive numbers
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(
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Q.
Let
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Q.
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If
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