Did I Make a Mistake? A Sign Error in an Exercise Answer

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lark

Did I do this right? An exercise in a book where my answer came out opposite from the author's. "camoo.freeshell.org/22.9.pdf"[/URL]
Laura

Last edited by a moderator: Apr 23, 2017

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olgranpappy

you are right. he has a sign error.

lark

olgranpappy said:

you are right. he has a sign error.

Thanks for checking.
Laura

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