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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 May 2008 23:53:57 IST
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we know 1+x+x^2+x^3+.......X^n= (x^n-1)/(x-1) DIFF BOTH THE SIDES AND GET THE REQD RESULT. HOPE IT HELPS.
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All that is done will not be lost to eternity everything ripens at its time and becomes the fruit at its hour.
You are not to decide what should be given to you , but to do what is required at that time.
AIR 1004 JEE 2008
Computer Science Dual Degree IIT Roorkee |
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Moderation Team
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