011-40705070  or  
Call me
Download our Mobile App
Select Board & Class
  • Select Board
  • Select Class

Find the middle term in the expansion of [x-1/x]10

Asked by Kshitij (student) , on 29/11/11

Become Expert
Score more in Math
Start Now with Video Lessons, Sample Papers, Revision Notes & more for Class-XI-Science - CBSE 


Dear Student!

The given expansion is .

General term of the given expansion,

Here n = 10, which is even.

So, th term i.e., 6th term is the middle terms of the given expansion.

Putting r = 5, we get

Thus, the middle term in the given expansion is –252.


Posted by Lalit Mehra (MeritNation Expert) on 30/11/11

This conversation is already closed by Expert

More Answers

I think, it 's something in 250 's. Please post all the steps.

Posted by Kshitij (student) on 29/11/11

Ask a QuestionHave a doubt? Ask our expert and get quick answers.
Show me more questions