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

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

EXPERT ANSWER

Hi!

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.

Cheers!

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

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