Calculus AB/BC – 5.7 Using the Second Derivative Test to Determine Extrema

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This lesson follows the Course and Exam Description recommended by College Board for *AP Calculus. On our website, it is found under Calculus Version #1.

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How can I know when to use the first derivative test and the second derivative test? And what’s the difference between them ?

khawlaahli
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Hello, Love the vids
Just wanted to clarify something, In the 2nd Question shouldn't it be sin x = -root 2/ 2

zaidsayed