Differential equation separated variables

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The discussion revolves around the solution of a separable differential equation and the possibility of simplifying the final expression. A participant notes that the attachment with the equation is pending approval, which may be why there hasn't been much help. They point out an error in the solution involving missing negatives and suggest rewriting a term for clarity. Ultimately, it is stated that the final equation cannot be simplified further, as it is typical for separable differential equations not to allow one variable to be expressed solely in terms of the other. The conversation highlights common challenges faced in solving such equations.
esmeco
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Homework Statement



I solved this equation and I was wondering if it's correctly solved...Also, I have one question: In my equation,at the very end, is it possible to calculate the value of V?I have solved other exercises where the final equation was,for example: y + ln[y - 1] = ex + C . Is it possible to simplificate it more?

Homework Equations



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The Attempt at a Solution



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Anyone help?
 
esmeco said:
Anyone help?

I think the reason that no one has helped is that the attachment is still pending approval. You may have to wait a while for it to be approved.
 
You have a couple of missing negatives: at one point -(1-\frac{1}{v} becomes -1-\frac{1}{v}. I would recommend that you rewrite -(1- v) as v- 1.

In this case, no it is not possible to simplify it any more. That's typical separable differential equations- you cannot generally solve for one variable as a function of the other.
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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