- #1
skook
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Could someone please just give me a hint to get started.
[tex]\frac{dy}{dx}-\frac{y}{x}=\frac{y^2}{x^2} for x>0[/tex]
thanks
Skook
[tex]\frac{dy}{dx}-\frac{y}{x}=\frac{y^2}{x^2} for x>0[/tex]
thanks
Skook
Since x and y only appear together as y/x, try the obvious substitution: Introduce a new dependent variable [itex]v= \frac{y}{x}[/itex].skook said:Could someone please just give me a hint to get started.
[tex]\frac{dy}{dx}-\frac{y}{x}=\frac{y^2}{x^2} for x>0[/tex]
thanks
Skook
An "old exam question" refers to a question that has been used on a previous examination, typically in the same subject or course.
"Old exam questions" are important because they give students an idea of the types of questions that may be asked on future exams. This can help students prepare and study more effectively.
It is possible for professors to reuse "old exam questions", but most will make some changes to the question or use it as a basis for a new question. This is to prevent students from simply memorizing answers and to ensure fairness for all students.
There are a few ways to access "old exam questions". Some professors or departments may make them available online or in a physical location, such as a library. You can also ask previous students or join study groups to access old exams. However, it is important to note that not all professors allow access to old exams.
No, studying "old exam questions" does not guarantee a good grade. While it can give you an idea of what to expect, it is important to also understand the material and be able to apply it in different ways. It is best to use "old exam questions" as a supplement to your studying, not the sole source of preparation.