Cube RootYou are currentlynot logged in Click here to log in |
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We write that $y$ is the cube root of $x$ thus: $y=\sqrt[3]{x}.$
The cube root operation from real numbers to real numbers is a function and is one-to-one. Its derivative approaches $\infty$ as $x$ approaches $0,$ so the line is in some sense "vertical" at the point $(0,0)$ - the tangent line at $(0,0)$ is vertical.
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