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![[Post New]](/templates/default/images/icon_minipost_new.gif) 24 Mar 2008 10:55:30 IST
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A bijective function is one that is both one-one and onto. A one-ono function is always in increasing or decreasing in its domain.
The minimum value of the first term is 0 and occurs when  . Hence for the function to be one-one  .
 Hence B. edit: corrected mistake.
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Guide to latex:
http://www.goiit.com/posts/list/community-shelf-a-guide-to-latex-48056.htm
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this reply: 10 points
(with 2 
in 2 votes ) [?]
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