Hi forum members, I would appreciate the help with the problem attached.

Basically I need to find to functions that do not follow the rule.

Is there any technique that helps find those functions.

Thanks in advance for anyone who can help.

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- April 1st 2010, 08:39 AMazarueLimits Question.
Hi forum members, I would appreciate the help with the problem attached.

Basically I need to find to functions that do not follow the rule.

Is there any technique that helps find those functions.

Thanks in advance for anyone who can help. - April 1st 2010, 08:47 AMTinyboss
For the first one, try f(x)=1/x, g(x)=1/x+1.

- April 1st 2010, 09:05 AMazaruethank you
any idea about the second one ?

- April 1st 2010, 09:08 AMTinyboss
Okay, the deal with the second one is that if x goes to zero from the left, you get f(-1), and from the right you get f(1). If the limit of f(x) at 1

*and*-1 equals to 4, then the result holds. - April 1st 2010, 09:14 AMazaruei will give it a look.
thanks.

- April 1st 2010, 10:40 AMazarueStill couldn't find f(x) that break the rules.
May I ask for further help with the 2nd problem.