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Quadratic inverse for y=x^2-1

User Drdot
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let's recall that to find the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".


\bf y = x^2-1\implies \stackrel{switcheroo}{x=y^2-1}\implies x+1=y^2\implies √(x+1)=\stackrel{f^(-1)(x)}{y}

User Rodrigo Boratto
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