Series Coefficient of x^48 (Jee Mains) | ExamDuo
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Series Coefficient of x^48
The coefficient of x
48
in (1 + x) + 2 (1 + x)
2
+ 3 (1 + x)
3
+ .... + 100 (1 + x)
100
is equal to :
SELECT ONE OPTION
A
100.
100
C
49
–
100
C
50
B
100
C
50
+
101
C
49
C
100.
100
C
49
–
100
C
48
D
100.
101
C
49
–
100
C
50
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