2
You visited us
2
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Mathematics
Sum of Coefficients of All Terms
The middle te...
Question
The middle term in the expansion of
(
x
2
+
1
x
)
n
is
924
x
6
. If
n
is even, then
n
is equal to
A
10
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
12
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
24
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
6
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is
B
12
Since,
n
is even.
∴
The middle term
=
(
n
2
+
1
)
th
term
⇒
T
(
n
/
2
+
1
)
=
n
C
n
/
2
(
x
2
)
n
/
2
(
1
x
)
n
/
2
=
n
C
n
/
2
x
n
/
2
⇒
T
(
n
/
2
+
1
)
=
924
x
6
(given)
⇒
x
n
/
2
=
x
6
⇒
n
=
12
Suggest Corrections
88
Similar questions
Q.
If
n
is even and the middle term in the expansion of
(
x
2
+
1
x
)
n
is
924
x
6
, then
n
is equal to
Q.
If the middle term in the expansion of
(
x
2
+
1
x
)
n
is
924
x
6
, then
n
=
Q.
If
(
x
2
+
1
x
)
n
has exactly one middle term which is equal to
α
.
x
3
then the value of
(
α
+
n
)
is- (
n
∈
N
)
Q.
Find the coefficient of the middle term in the expansion of
(
1
+
x
)
n
when n is even and the coefficient of middle terms if n is odd. Your answer must not be in factorial notations.
Q.
Show that the middle term in the expansion of
(
1
+
x
)
n
is
6
x
2
if
n
=
4
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Explore more
Sum of Coefficients of All Terms
Standard XII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app