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Topic: Algebra 2/Trig Regents
Replies: 55   Last Post: Jul 1, 2011 6:01 PM

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 Nick B Posts: 96 Registered: 9/23/07
Re: a history of regents exam errors
Posted: Jun 30, 2011 8:08 AM

There was a Newsday article published about the errors on the test, and the focus was on #19. Some had commented on the online version of the article saying that inverse cosine doesn't have to be a function; however, we can go to the NYSDOE Glossary for grades 9-12 to see that assertion is false, even according to the state:

(Page 42) inverse trigonometric functions (A2T) Given the value of a trigonometric function for an angle ?, the inverse trigonometric function outputs the measure of angle ?. The inverses of the six basic trigonometric functions are written as sin-1, cos-1, tan-1, csc-1, sec-1, and cot-1.

While that is a lousy definition, the state is clearly defining the ^-1 notation as the inverse function. None of the choices in #19 is a function. I happen to know the people at Stony Brook University in the Newsday article personally and ALL are fantastic mathematicians and teachers and would not lead us astray.

Date Subject Author
6/20/11 Jayson Kiang
6/20/11 rhoffman@wacs2.wnyric.org
6/21/11 Jessica
6/21/11 Jonathan Halabi
6/21/11 Mitchell, Doreen
6/21/11 Lin Chen
6/21/11 Steve Grey
6/21/11 Lin Chen
6/21/11 precopio@nycap.rr.com
6/21/11 Kathy
6/22/11 Glenn Mary
6/23/11 Jonathan Halabi
6/23/11 Deanna Tullison
6/24/11 ELEANOREVO@aol.com
6/24/11 Roberta M. Eisenberg
6/24/11 lvullo@ccsd-k12.org
6/24/11 Ann Murray
6/24/11 ELEANOREVO@aol.com
6/24/11 Ann Murray
6/24/11 Roberta M. Eisenberg
6/24/11 precopio@nycap.rr.com
6/29/11 Glenn Mary
6/30/11 Brent Neeley
6/30/11 Nick B
6/30/11 Evan Romer
6/30/11 SRothwell@e1b.org
7/1/11 Nick B
6/30/11 Eileen Welch
7/1/11 Eileen Lane
6/21/11 Menapace, Susan
6/21/11 Mimi Duncan
6/21/11 Jason L
6/21/11 Joe Del Giudice
6/21/11 Nick B
6/21/11 dfothergill@wvcsd.org
6/21/11 ElizWaite@aol.com
6/21/11 Jason
6/22/11 Jonathan Halabi
6/22/11 SRothwell@e1b.org
6/22/11 maryanne doyle
6/22/11 Jayson Kiang
6/22/11 Nick B
6/22/11 John
6/22/11 StGOLD2112@aol.com
6/22/11 Nick B
6/23/11 precopio@nycap.rr.com
6/23/11 TulloOLL@aol.com
6/23/11 Deanna Tullison
6/23/11 VERN TENNEY
6/23/11 Amy Sacca
6/23/11 Bonniebro@aol.com
6/23/11 MHulton@holland.wnyric.org
6/23/11 Eleanor Pupko
6/24/11 ezseller@mail.nasboces.org