Solving the Diff. Eq: dy/dx= -x/y

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SUMMARY

The discussion centers on solving the differential equation dy/dx = -x/y, derived from the flow line of the vector field F(x,y) = -yi + xj. Participants emphasize the importance of starting with the relationship dx/F1 = dy/F2, where F1 and F2 represent the components of the vector field. The solution involves manipulating these relationships to demonstrate the behavior of flow lines in the context of the given differential equation.

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  • Understanding of vector fields and flow lines
  • Familiarity with differential equations
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  • Basic concepts of multivariable functions
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minia2353
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can someone please help me solve this problem?

let C be a flow line for F(x,y) = -yi+xj, and let (x,y) be a point on C for which y is not 0.
Show that the flow lines satisfy the differential equation
dy/dx= -x/y.
 
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Start with the fact that dx / F1 = dy / F2, where F = F1 i + F2 j.
 
I really don't understand...
can you explain the step more thoroughly??
 

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