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How to find equation of line by graphing functions Practice Test
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Q1
Let f(x)=x^2-$\frac{1}{1-x^2}$. Which of the following gives the equation of the line normal to f(x) when 
?
Let f(x)=x^2-$\frac{1}{1-x^2}$. Which of the following gives the equation of the line normal to f(x) when
at the point 
.