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- Path: sparky!uunet!sun-barr!cs.utexas.edu!rutgers!uwvax!zazen!schaefer.math.wisc.edu!mueller
- From: mueller@schaefer.math.wisc.edu (Carl Douglas Mueller)
- Newsgroups: sci.math
- Subject: Re: Another GRE question for you folks
- Message-ID: <1992Oct13.130058.27724@schaefer.math.wisc.edu>
- Date: 13 Oct 92 13:00:58 GMT
- References: <1992Oct12.003139.2290@merrimack.edu> <SMITH.92Oct12141247@gramian.harvard.edu> <1992Oct12.221420.19382@galois.mit.edu> <1bdf5tINNjnc@roundup.crhc.uiuc.edu>
- Reply-To: mueller@schaefer.UUCP (Carl Douglas Mueller)
- Organization: Univ. of Wisconsin Dept. of Mathematics
- Lines: 18
-
- In article <1bdf5tINNjnc@roundup.crhc.uiuc.edu> hougen@vision.csl.uiuc.edu (Darrell Roy Hougen) writes:
- >I certainly don't remember having it impressed upon me that
- >the surd always implies the positive square root.
-
- This is the fault of your teachers. It should have been taught that way.
-
- >In fact, I remember
- >equations being solved by taking *the* square root of both sides.
- >There were invariably a positive solution and a negative solution.
-
- Absolutely, but that's something else altogether. Remember actually
- writing the +/- in front of one of the sides? (Like in the quadratic
- formula?) If the surd didn't imply one or the other root, that +/-
- wouldn't be necessary (at least as long as the surd was there).
- >
- >Darrell
-
- Carl Mueller
-