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Mathematics 9 Online
OpenStudy (anonymous):

Please help me understand how to find if the graph of f has a vertical tangent or vertical cusp at c. Help me show the process of finding both of them. Please. for (2-x)^4/5; c=2 then I can fully understand it and do the rest myself. Thank you.

OpenStudy (amistre64):

a vertical tangent is when we get when the derivative is undefinable ... which is to say it produces a divide by zero.

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