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Algebra

Hot goIITian

 Joined: 7 Feb 2011 Post: 140
29 Mar 2012 14:43:36 IST
1 People liked this
10
489
Series..
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Algebra

Find the sum of the series:

upto n terms..

New kid on the Block

Joined: 24 Oct 2011
Posts: 6
29 Mar 2012 14:56:20 IST
0 people liked this

plz enter what series?

Hot goIITian

Joined: 7 Feb 2011
Posts: 140
29 Mar 2012 15:00:44 IST
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Please click the yellow button above answer button (after number of views) to view the series.

Blazing goIITian

Joined: 23 Dec 2011
Posts: 1180
29 Mar 2012 15:01:33 IST
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Blazing goIITian

Joined: 23 Dec 2011
Posts: 1180
29 Mar 2012 15:02:24 IST
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plz write series cant guess it ourselves.........

Hot goIITian

Joined: 7 Feb 2011
Posts: 140
29 Mar 2012 15:27:27 IST
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Series: x/(1-x2) + x2/(1-x4) + x4/(1-x8)...

And for those who don't know ,since the series is in image format ,so it is not shown on the main page. You need to click the yellow button shown below.

Cool goIITian

Joined: 19 Feb 2011
Posts: 68
30 Mar 2012 11:55:20 IST
1 people liked this

See this carefully this trick is useful in most of the series questions not only subtract or add 1 it may be different

so

break every term like this and add them you'll get the answer reply if you like it

Blazing goIITian

Joined: 21 Mar 2012
Posts: 1457
30 Mar 2012 11:58:47 IST
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amswer is 1/(1-x)-1/(1-x^2^n)

Blazing goIITian

Joined: 21 Mar 2012
Posts: 1457
30 Mar 2012 12:03:07 IST
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my answer is 1/1-x - 1/1-x^2^n

Hot goIITian

Joined: 7 Feb 2011
Posts: 140
30 Mar 2012 12:03:35 IST
0 people liked this

It was easy. I wonder why it didn't strike to me..Thanks..

Blazing goIITian

Joined: 21 Mar 2012
Posts: 1457
30 Mar 2012 12:07:54 IST
0 people liked this

mine is also correct like me toooooooooo

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