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OpenStudy (marcelie):
help please i have the same hw problem for this one but how would u find the concave upward ? is there an algebraic way do it ? https://www.sccollege.edu/Departments/Mathematics/Documents/Math%20185/10-02-014_Calculus_with_Parametric_Curves.pdf
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OpenStudy (marcelie):
i got to the last step but finding concave upward is by the 2nd derivative ?
OpenStudy (marcelie):
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