Asked by Anonymous
                find orthogonal trajectory of family of circles x^2+y^2+2fy+1=0.
            
            
        Answers
                    Answered by
            Steve
            
    You have
x^2 + (y+f)^2 = f^2-1
These are circles with center at (0,-f). Clearly the radii of these circles are orthogonal to the curves, and that is the family of lines that pass through (0,-f):
y+f = mx
    
x^2 + (y+f)^2 = f^2-1
These are circles with center at (0,-f). Clearly the radii of these circles are orthogonal to the curves, and that is the family of lines that pass through (0,-f):
y+f = mx
                    Answered by
            Anonymous
            
    X^2+y^2-cx-100
    
                    Answered by
            Mamta
            
    x2+2y2=c2
    
                    Answered by
            Alakhya
            
    x2+y2-c1y=c
    
                    Answered by
            Yamini
            
    Answer for this problem
    
                    Answered by
            Yamini
            
    Orthogonal trajectory of x^2+y^2+2fy+1=0 please give me answer
    
                    Answered by
            Manasa
            
    Give me answer
    
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