
Author 
Message 
kennychow
Joined: 08 Nov 2007Posts: 3

Posted: Thu Nov 08, 2007 3:02 am Post subject: Few Equations that need to be solved…



Given that: 1) X(a+1) >1 2) Y (b+1) >1 3) (c+1)(X+Y) >c Please solve Min. value of x, y, z in terms of a, b, c
Many thanks!!!





Kahoo
Frequent VisitorJoined: 29 Oct 2003Posts: 739
Location: HKU Math

Posted: Fri Nov 09, 2007 12:21 am Post subject:



There are no x, y, z but only X, Y… any typo?





kennychow
Joined: 08 Nov 2007Posts: 3

Posted: Mon Nov 12, 2007 8:50 am Post subject:



Ops ..sorry….ys…typo mistake
x and y only





Kahoo
Frequent VisitorJoined: 29 Oct 2003Posts: 739
Location: HKU Math

Posted: Tue Nov 13, 2007 8:41 pm Post subject:



You question is not very clear. What do you mean by “minimum value of X and Y”? Each of X and Y has a minimal value, but they may not be attainable at the same time.
For instance, if X >= 1, Y >= 2, X+Y >= 4, what is the “minimum value of X and Y”?





kennychow
Joined: 08 Nov 2007Posts: 3

Posted: Wed Nov 14, 2007 4:12 am Post subject:



~.~ i dunno just my elder bro. asked me to solve… >< how to solve this eq????
PLZ HELP





Kahoo
Frequent VisitorJoined: 29 Oct 2003Posts: 739
Location: HKU Math

Posted: Wed Nov 14, 2007 7:55 pm Post subject:



How can you solve something that you don’t know what it is?
You’d better clarify the meaning of the question before attempting to solve it.





