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1.
The coefficient of 
in the expansion of 
is
in the expansion of is
2.
In the polynomial 
. The coefficient of 
is
. The coefficient of is
3.
Let 
be an odd integer. If 
for every value of 
, then
be an odd integer. If for every value of , then
4.
In the expansion of 
the number of terms, is
the number of terms, is
5.
If is odd, then 
is equal to
is odd, then is equal to
6.
If 
.....
then the value of 
....
is
..... then the value of .... is
7.
is equal to
is equal to
8.
In the expansion of the following expression 
, the coefficient of 
is
, the coefficient of is
9.
In the binomial expansion of 
the sum of 5th and 6th terms is zero, 
the sum of 5th and 6th terms is zero,
10.
The middle term in the expansion of 
is
is