How do I find the Derivative for the Function.
Thanks.
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How do I find the Derivative for the Function.
Thanks.
The derivative of ln(x) is 1/x. I'm not sure what you're trying to get at with your formula:
This formula is incorrect, so please clarify your question.
hi. I know that the derivative of ln(x) is 1/x. but the original question was to prove that the Function ln(x)=1/x-1 has exactly 2 Solutions
I need to find the derivative.
hope is more clear now :)
You can use the Intermediate Value Theorem and/or Rolles Theorem to prove it has two solutions.
Would like to help you but have not a slightest idea what you want to do here.
Equations ln(x) = 1/x-1 and ln(x) = -1/(x-1) are not the same, so it gets more and more confusing.
The first equation has only one solution, the second -- none.
You can rewrite it as:
and then try to show this has exactly two solutions.
The thing is, it does not have two solutions.
But, if it were, then it would have the two solutions.
Both graphs appear below.
OK I will try thanks to all of you for helping.
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