Solve The given answer is x is approximately 139, if you need to check.
Last edited by Punch; Dec 19th 2011 at 06:50 AM.
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Do you know about the Lambert W Function?
Originally Posted by sbhatnagar Do you know about the Lambert W Function? Sorry but I dont know the Lambert W Function? Is there another way to solve this?
Originally Posted by Punch Sorry but I dont know the Lambert W Function? Is there another way to solve this? You can use graphical method. Plot y=x+20ln(x-20) and y=234 Note the point where they intersect. The abscissa of the point is the value of x.
Originally Posted by sbhatnagar You can use graphical method. Plot y=x+20ln(x-20) and y=234 Note the point where they intersect. The abscissa of the point is the value of x. Yeap, I tried that but the graph of y=x+20ln(x-20) seems totally out of range on my graphical calculator
Originally Posted by Punch Yeap, I tried that but the graph of y=x+20ln(x-20) seems totally out of range on my graphical calculator Since you didn't tell us which model you use I've attached a telenovela taken from a TI84. Graph the function: and determine the x-intercept. Maybe this helps.
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