Author Topic: Section 2.2 Q32  (Read 1357 times)

Xuanru Pan

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Section 2.2 Q32
« on: September 19, 2018, 10:31:04 PM »
I attempted to do section 2.2 Q32, and get the answer $x^2+y^2-e^cx^3=0$. However, the answer from the textbook is $x^2+y^2-cx^3=0$. Can someone please explain to me where I did wrong? I have attached my answers below. Also, is it possible to solve this problem by rewriting it as a Bernoulli equation?
« Last Edit: September 19, 2018, 11:29:37 PM by Victor Ivrii »

Victor Ivrii

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Re: Section 2.2 Q32
« Reply #1 on: September 19, 2018, 11:29:07 PM »
You got the same answer. Think why

Yes, indeed, it is also a Bernoulli equation. Some equations could be solved by more than one method.
« Last Edit: September 20, 2018, 04:13:58 AM by Victor Ivrii »

Nan Choi

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Re: Section 2.2 Q32
« Reply #2 on: September 20, 2018, 03:48:04 AM »
$e^c$ is just some arbitrary constant which the textbook has replaced with just $c$. Your answer and the textbook's answer are the same.