Article View: k12.ed.math
Article #488RE: INTEGRALS
From: Sheila King
Date: Wed, 20 Jan 1993 01:52
Date: Wed, 20 Jan 1993 01:52
22 lines
1386 bytes
1386 bytes
Hi Henry Choy,
Reading your message in response to Mike Bouldan, regarding integrating
1/x from -2 to 2 you say:
-> Just integrate from -2 to 0 (NOT FROM 0 to -2) and then from 0 to 2.
-> You have to take the limits each time. But what is -infinity +
-> infinity? You don't know, so you add the positive and negative halves
-> of the series together: i.e. I{0,2}(1/x-1/x)dx = 0 in the limit.
That the answer is zero. Which seems to make sense to me (not that I'm
any authority). However, Mike didn't think this was the right answer,
and it doesn't agree with Brian Harvey's post, so I'm a little puzzled.
Are you _positive_ this is the answer to this problem?
Sheila
coming to you from Diamond Bar, CA (in Los Angeles County)
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Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!hri.com!spool.mu.edu!howland.reston.ans.net!usc!sol.ctr.columbia.edu!news.unomaha.edu!psgrain!puddle!f315.n103.z1.fidonet.org!Sheila.King From: Sheila.King@f315.n103.z1.fidonet.org (Sheila King) Newsgroups: k12.ed.math Subject: RE: INTEGRALS Message-ID: <40110.2B5EBAC2@puddle.fidonet.org> Date: 20 Jan 93 01:52:00 GMT Sender: ufgate@puddle.fidonet.org (newsout1.26) Organization: FidoNet node 1:103/315 - Castle of the Four , Diamond Bar CA Lines: 22