Princeton review 3rd edition error

Forum for the GRE subject test in mathematics.
Post Reply
stefan_s
Posts: 10
Joined: Tue Jun 30, 2009 8:45 pm

Princeton review 3rd edition error

Post by stefan_s » Sun Jul 19, 2009 5:29 pm

Is there a place with all errors found so far?

Is this an error? P 95, question 29. Shouldnt the answer be (4-Pi)/4? I think in the answer they forgot to subtract from 1/2... Please tell me if Im correct.

Thanks

User avatar
lime
Posts: 129
Joined: Tue Dec 04, 2007 2:11 am

Re: Princeton review 3rd edition error

Post by lime » Mon Jul 20, 2009 3:48 am

Is it the integral of x*atan(x) problem?

The answer is valid (Pi-2)/4. Recheck your answer.

stefan_s
Posts: 10
Joined: Tue Jun 30, 2009 8:45 pm

Re: Princeton review 3rd edition error

Post by stefan_s » Mon Jul 20, 2009 8:16 pm

Yea... you are right. Misread the problem.

What about page 114, example 3.5? Should the equation include a 1/9 ?
And page 117, spherical coordinates paragraph, third line at the end... shouldn't it be phi and not theta?

thanks

zombie
Posts: 27
Joined: Thu Nov 20, 2008 2:30 am

Re: Princeton review 3rd edition error

Post by zombie » Tue Jul 21, 2009 12:16 am

You're right on both of those errors. I just wrote the 1/9 coefficient into the book before the z^2 term.

He confused theta with phi there.

Also, I will add that in the section on the chain rule, P. 125, u = f(v,y) and v = g(x,u) then his answer makes sense (or at least that's what I have written in my text).

User avatar
lime
Posts: 129
Joined: Tue Dec 04, 2007 2:11 am

Re: Princeton review 3rd edition error

Post by lime » Tue Jul 21, 2009 2:14 am

Thank you guys! I included your catches in the FAQ.



Post Reply