tag:blogger.com,1999:blog-4424903742453274358.post3535386951316569384..comments2023-08-11T03:47:45.388-05:00Comments on I'm not watching TV: Negative signsAndy Rundquisthttp://www.blogger.com/profile/04900696452285397726noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-4424903742453274358.post-34030198476549798322010-11-21T13:37:26.995-06:002010-11-21T13:37:26.995-06:00that's a great point. If there's adding/s...that's a great point. If there's adding/subtracting involved then this 'gut' approach only works term by term. In other words you have to decide whether the term in questions should increase or decrease the answer.Andy Rundquisthttps://www.blogger.com/profile/04900696452285397726noreply@blogger.comtag:blogger.com,1999:blog-4424903742453274358.post-53241259185239651552010-11-21T12:51:31.299-06:002010-11-21T12:51:31.299-06:00But now I just realized...what if the negative sig...But now I just realized...what if the negative sign changes the algebra? In other words, if the negative sign is left out, two terms are added together, but if the negative is put in, then those same two terms would now be subtracted and yield a different answer.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4424903742453274358.post-45616531049332776032010-11-20T23:55:59.256-06:002010-11-20T23:55:59.256-06:00Oooh. I like this. As one who can't keep his n...Oooh. I like this. As one who can't keep his negative signs straight from beginning to end, this will make me look like less of a fool during derivations. And I just hate the empty silence while we stare at the board wondering what went wrong. Thanks for sharing!Anonymousnoreply@blogger.com