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10 questions from this quiz
f′(a)=0f'(a) = 0f′(a)=0
Find the derivative f′(x)f'(x)f′(x)
Positive → zero → negative
Negative → zero → positive
The gradient sign doesn't change
Local maxima or minima
x=3x = 3x=3
It is parallel to the x-axis
Local maximum
2
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