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JEEMAIN and NEET
>>
Mathematics
>>
Class11
>>
Bionomial Theorem and Simple Applications
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Q)
If
P
n
denotes the product of binomial coeff. in the expansion of
(
1
+
x
)
n
, then
P
n
+
1
P
n
=?
=
(
n
+
1
)
n
n
!
=
(
n
+
1
)
n
(
n
+
1
)
!
=
(
n
+
1
)
n
+
1
n
!
=
n
n
n
!
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