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Binomial Theorem
Binomial Theorem
Hard
Question
The coefficient of x
5
in the expansion of (1 + x)
21
+ (1 + x)
22
+...........+ (1 + x)
30
is -
Options
A.
51
C
5
B.
9
C
5
C.
31
C
6
−
21
C
6
D.
30
C
5
+
20
C
5
Solution
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Binomial Theorem
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