K kpx001 Junior Member Joined Mar 6, 2006 Messages 119 Jul 31, 2007 #1 ((1/2)-(1/x))/(x-2) x/(2x)-(2/2x)/(x-2) then combine to get (x-2)/2x/(x-2) then i do the reciprocol (x-2)/2x times 1/(x-2) the x-2 can be canceled to get one, and the final answer is 1/2x ?? this is how far i got till i get confused thanks
((1/2)-(1/x))/(x-2) x/(2x)-(2/2x)/(x-2) then combine to get (x-2)/2x/(x-2) then i do the reciprocol (x-2)/2x times 1/(x-2) the x-2 can be canceled to get one, and the final answer is 1/2x ?? this is how far i got till i get confused thanks
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Jul 31, 2007 #2 Except for some notation problems, you're done. You should not get confused after you are done. You got it!! Good work. Note: x/(2x)-(2/2x)/(x-2) This doesn't mean what you want. More parentheses. [x/(2x)-(2/2x)]/(x-2)
Except for some notation problems, you're done. You should not get confused after you are done. You got it!! Good work. Note: x/(2x)-(2/2x)/(x-2) This doesn't mean what you want. More parentheses. [x/(2x)-(2/2x)]/(x-2)
D Denis Senior Member Joined Feb 17, 2004 Messages 1,700 Jul 31, 2007 #3 tkhunny said: x/(2x)-(2/2x)/(x-2) This doesn't mean what you want. More parentheses. [x/(2x)-(2/2x)]/(x-2) Click to expand... TK, shuddn't dat b [x / (2x) - 2 / (2x)] / (x - 2) :?:
tkhunny said: x/(2x)-(2/2x)/(x-2) This doesn't mean what you want. More parentheses. [x/(2x)-(2/2x)]/(x-2) Click to expand... TK, shuddn't dat b [x / (2x) - 2 / (2x)] / (x - 2) :?:
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Jul 31, 2007 #4 I'm having a little trouble seeing the difference. No sin in extra, but correct, parentheses.
D Denis Senior Member Joined Feb 17, 2004 Messages 1,700 Jul 31, 2007 #5 What I'm getting at is 2/2x is not same as 2/(2x)
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Jul 31, 2007 #6 Right. Missed it - even after staring at it for a while. I guess I group a single value and its associated variable in my head.
Right. Missed it - even after staring at it for a while. I guess I group a single value and its associated variable in my head.