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VCE Stuff => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematics => Topic started by: kaushik.thungaxd on December 14, 2010, 04:01:17 pm

Title: Essentials Methods questions
Post by: kaushik.thungaxd on December 14, 2010, 04:01:17 pm

Hey guys,

I've just been working through a few questions from the Essentials Methods book and
got a little confused with this question:

12. Let f(x) = (px+q)/(x+r) where x is an element of R\(-r,r)

(a) If f(x) = f(-x) for all z, show that f(x) = p for x is an element of R\(-r,r)

(b) If f(-x) = -f(x) for x (does not = 0), find the rule for f(x) in terms of q.

Any help would me much appreciated.


                     

Title: Re: Essentials Methods questions
Post by: TrueTears on December 14, 2010, 04:04:22 pm

12. a) think about even functions

b) Odd functions.

Title: Re: Essentials Methods questions
Post by: kaushik.thungaxd on December 14, 2010, 04:07:42 pm

Thanks true tears, thats what I initially thought but and then got confused
as to how you would be able to apply that.

Title: Re: Essentials Methods questions
Post by: kaushik.thungaxd on December 14, 2010, 04:19:13 pm

Do you happen to know the solution True Tears?
Any help would be much appreciated.

Title: Re: Essentials Methods questions
Post by: kaushik.thungaxd on December 14, 2010, 04:36:18 pm

Hey TT,

I was wondering how did you go about revising for methods
over the holidays? Since I'm new to methods because I'm doing
3 and 4 methods without doing 1 and 2. And did you use any additional
texts?

Kind regards,
Kaushik