wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If rth term is the middle term in the expansion of (x212x)20, then (r+3)th term is


A

20C14(x214)

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

20C12x2212

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

20C7x.213

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

20C7x.213


20C7x.213

Here n is even

So, The middle term in the given expansion is (202+1)th =11th term

Therefore, (r+3)th term is the 14th term

T14=20C13(x2)2013(12x)13

=(1)1320C13x1413213

=20C7x213


flag
Suggest Corrections
thumbs-up
13
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Visualising the Terms
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon