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Question
Mathematics
The middle term of expansion of ( (10/x)+ (x/10))10 is
Q. The middle term of expansion of
(
x
10
+
10
x
)
10
is
4648
192
KCET
KCET 2015
Binomial Theorem
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A
7
C
5
9%
B
8
C
5
10%
C
9
C
5
13%
D
10
C
5
68%
Solution:
Since,
n
=
10
(even), so the midđle term will be
(
2
10
+
2
)
th term, i.e. 6 th term.
Now,
T
6
=
10
C
5
(
x
10
)
5
(
10
x
)
5
=
10
C
5