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Question
Mathematics
If the numerically greatest term in the expansion of (1-3 x)8 for x=(1/2) is Tr then ' r ' is
Q. If the numerically greatest term in the expansion of
(
1
−
3
x
)
8
for
x
=
2
1
is
T
r
then '
r
' is
764
124
Binomial Theorem
Report Error
A
2
B
4
C
6
D
8
Solution:
T
r
T
r
+
1
=
2
3
≷
1
27
≷
5
r
for
r
=
5
T
6
>
T
5
for
r
=
6
T
7
<
T
6
∴
T
6
is numerically greater