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Question
Mathematics
The minimum value of f ( x )= a a x + a 1- a x , where a, x ∈ R and a>0, is equal to :
Q. The minimum value of
f
(
x
)
=
a
a
x
+
a
1
−
a
x
,
where a,
x
∈
R
and
a
>
0
,
is equal to :
2489
233
JEE Main
JEE Main 2021
Sequences and Series
Report Error
A
2
a
0%
B
2
a
55%
C
a
+
a
1
27%
D
a
+
1
18%
Solution:
A.M.
≥
G.M.
f
(
x
)
=
a
a
x
+
a
1
−
a
x
=
a
a
x
+
a
a
x
a
≥
2
a