Finding minimum or maximum - Catch the Error - Differentiation - Pre-university Calculus - TU Delft

This educational video is part of the course Pre-University Calculus, available for free via http://www.online-learning.tudelft.nl ©️ TU Delft, released under a CC BY NC SA license: https://creativecommons.org/licences/by-nc-sa/4.0/ In this video a mathematical problem involving finding the minimum or maximum of a function is solved. But the solution contains an error! Can you catch the error? In a separate video the error is explained. This video is part of the edX course: pre-university Calculus (Calc001x)