The Second Derivative Test for Local Maxima and Minima says: a. has a local maximum value
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The Second Derivative Test for Local Maxima and Minima says:
a. ƒ has a local maximum value at x = c if ƒ′(c) = 0 and ƒ″(c)
b. ƒ has a local minimum value at x = c if ƒ′(c) = 0 and ƒ″(c) > 0.
To prove statement (a), let P = (1/2) |ƒ″(c)|. Then use the fact that
to conclude that for some δ > 0,
Thus, ƒ′(c + h) is positive for -δ
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Related Book For
Thomas Calculus Early Transcendentals
ISBN: 9780321884077
13th Edition
Authors: Joel R Hass, Christopher E Heil, Maurice D Weir
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