Tangent and normal problem - differential equation

dario1

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Joined
May 30, 2015
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1
Hi, I have one problem to solve.
Problem: Find the family of curves for which is true - distance from O(0,0) to T(x0,y0) == x1
I know how to solve diff. equation, but i don't know how to wirite it.problem.jpg
 
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