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- Newsgroups: sci.math
- Path: sparky!uunet!pipex!warwick!pavo.csi.cam.ac.uk!emu.pmms.cam.ac.uk!rgep
- From: rgep@emu.pmms.cam.ac.uk (Richard Pinch)
- Subject: Re: Calculus Puzzle
- Message-ID: <1992Dec18.115922.2150@infodev.cam.ac.uk>
- Sender: news@infodev.cam.ac.uk (USENET news)
- Nntp-Posting-Host: emu.pmms.cam.ac.uk
- Organization: Department of Pure Mathematics, University of Cambridge
- References: <BzFoLp.EHs@unccsun.uncc.edu>
- Date: Fri, 18 Dec 1992 11:59:22 GMT
- Lines: 18
-
- In article <BzFoLp.EHs@unccsun.uncc.edu> sbardhan@uncc.edu writes:
- >X + X + X + X +X.... X times = X^2
- >Differtiating both sides w.r.t X we get
- >
- >1 + 1 + 1 + .....X times = 2X
- >or , X = 2X
- > as X may not be Zero
- >1 = 2.
- >
- >
- >--Soumendu, UNCC
- >
- No, no, you do it by the product rule:
- (1+1+...) X times plus (X+X+...) 1 times = X + X = 2X
- So no problem.
-
- Richard Pinch
-
-