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Question
Mathematics
If displaystyle∑r=02 n ar(x-1)r= displaystyle∑r=02 n br(x-2)r and br=(-1)r-n for all r ≥ n, then an is
Q. If
r
=
0
∑
2
n
a
r
(
x
−
1
)
r
=
r
=
0
∑
2
n
b
r
(
x
−
2
)
r
and
b
r
=
(
−
1
)
r
−
n
for all
r
≥
n
, then
a
n
is
177
176
Binomial Theorem
Report Error
A
2
n
+
1
C
n
−
1
B
3
n
C
n
C
2
n
+
1
C
n
D
0
Solution:
Correct answer is (c)
2
n
+
1
C
n