Algebra - pls help

dericteong · 2006-10-16 22:37:05

To simplify:

Last edited by dericteong (2006-10-16 22:40:39)

Dross · 2006-10-16 23:08:53

Remember that

.
So .
Can you do it now?

dericteong · 2006-10-17 01:01:16

Corrent sir?

Last edited by dericteong (2006-10-17 01:01:41)

mathsyperson · 2006-10-17 03:12:47

All of that looks perfect to me. Plus I did that in my head earlier and that's what I got.

Dross · 2006-10-17 04:08:34

dericteong wrote:

http://i40.photobucket.com/albums/e239/ … ap_004.jpg
Corrent sir?

Ironicaly, your answer is correct but your method is far from correct!

In the third line, the divides sign should be a multiplies sign (can you see why?). Also in the third line, you seem to be using the following relation:

...which is simply not true! (look what happens when, for example, x and y are both 1)

Try again with the working (no points for the correct answer if it's by accident!). I cannot really post a full solution at the mo (should be working and all ) but I will do if nobody has by the time I get home.

Still, give it a try yourself - the only way to learn maths is to do maths, not wach other people do maths!

Last edited by Dross (2006-10-17 04:08:59)

Dross · 2006-10-17 06:49:54

Math Is Fun Forum

#1 2006-10-16 22:37:05

Algebra - pls help

#2 2006-10-16 23:08:53

Re: Algebra - pls help

#3 2006-10-17 01:01:16

Re: Algebra - pls help

#4 2006-10-17 03:12:47

Re: Algebra - pls help

#5 2006-10-17 04:08:34

Re: Algebra - pls help

#6 2006-10-17 06:49:54

Re: Algebra - pls help

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