ln(x) + ln(x-1) = 1 Solve for x
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Originally Posted by dm10 ln(x) + ln(x-1) = 1 Solve for x Use the following rules: 1. . 2. After applying the above rules, expand the result and arrange into a quadratic equation which you can solve for x.
Originally Posted by dm10 ln(x) + ln(x-1) = 1 Solve for x First off, we can't have Remember the rule ? Using this rule we get Then using the quadratic formula, namely If then we get as our solution for x... And since we know we disregard the negative answer. So .
Originally Posted by mr fantastic Use the following rules: 1. . 2. After applying the above rules, expand the result and arrange into a quadratic equation which you can solve for x. Thanks for the help.
Originally Posted by dm10 I did use the rules but I came out with the wrong answer. The answer I got was -1/2 but the correct answer is 1/2(1 + (the square root of) 1 + 4e) See my response above. Can you see where you've gone wrong?
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