The slope of normal at any point (x,y) of a curve y=f(x), is given by – InterviewSolution

1.	The slope of normal at any point (x,y) of a curve y=f(x), is given by −2xyx2+y2+1 and curve passes through (1,0).Then, which of the following point(s) can lie on the curve y=f(x)?
Answer» The slope of normal at any point $(x, y)$ of a curve $y = f (x)$ , is given by $\frac{- 2 x y}{x^{2} + y^{2} + 1}$ and curve passes through $(1, 0)$ .Then, which of the following point(s) can lie on the curve $y = f (x) ?$

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