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 January 25th, 2012, 02:43 AM #1 Member   Joined: Jan 2012 Posts: 82 Thanks: 0 Range of values of x and y Hi! I need to find the range of values of x and y for which the expression on eash side of this equation are defined. In(2-y) = In(x-1)+In(4-x)-x Can anyone help? Thanks
 January 25th, 2012, 05:50 AM #2 Member   Joined: Jan 2012 Posts: 80 Thanks: 0 Re: Range of values of x and y For a logarithm to produce real values the input expression must be greater than 0. So we have: $2-y>0$ $y<2$ And: $x-1>0$ and $4-x>0$ $1
 January 26th, 2012, 12:44 AM #3 Member   Joined: Jan 2012 Posts: 82 Thanks: 0 Re: Range of values of x and y Thank you so much flying pigeon! You have a nice day too!

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