jpaintballer1
17.01.2020 •
Mathematics
Over which interval is the graph of f(x) = -x² + 3x + 8 increasing?
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Ответ:
Does not exist.
Step-by-step explanation:
d/dx |u| = (u / |u|) * du/dx
Here u = x^2 - 1 and du/dx = 2x , so we have
2x (x^2 - 1) / |x^2 - 1| as the required derivative.
At the point (1,0)
the denominator = |1^2 - 1| = 0
- so the derivative does not exist at (1, 0)