The order of differential equation of fa...

The order of differential equation of family of circles passing through intersection of `3x+4y-7=0` and `S=-x^(2)+y^(2)-2x+1=0` is

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The correct Answer is:

Equation of family of circles is `(x^(2)+y^(2)-2x-2y+1)+lambda(3x+4y-7)=0`
Arbitrary constants is 1
So, order is 1.

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