Using precise definitions of limits, prove that lim x → 0 f ( x ) does not exist, given that f ( x ) is the ceiling function. (Hint: Try any δ < 1 .)
Using precise definitions of limits, prove that lim x → 0 f ( x ) does not exist, given that f ( x ) is the ceiling function. (Hint: Try any δ < 1 .)
Answer the following True or False:
If lim f(x) exists, then f(x) is a differentiable function at r = - 5.
I+ - 5
True
False
Let f(x) = 2x? + 1. Evaluate
f(4 + h) - f(4)
lim
h-0
h
Use the graph of f in the figure to find the following values, if they exist.
a. f(2)
b. lim f(x)
X→2
c. lim f(x)
X→4
d. lim f(x)
X→5
3-
0-
0
13
y = f(x)
X
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
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