Chapter 1 Flashcards
F(x) increases or decreases without bound as x approaches c
DNE
F(x) oscillates between two fixed values as x approaches c
DNE
F(c) does not equal the limit at f(c)
The limit does exist
Constant functions
Continuous over domain
Polynomial function
Continuous over domain
Rational Function
Continuous over domain
Radical Functions
Continuous over domain
Trig Functions
Continuous over domain
Let c be a real number and f(x)=g(x) for all x ≠ c in an open interval containing c. If lim as x approaches c g(x) exists, then…
then lim of f(x) as x approaches c has that same value.
Lim as x approaches 0 sin x/x=
=1
Lim as x approaches 0 1-cos x/x=
=0
Removable discontinuity
Holes
Nonremovable discontinuity
Asymptotes
Piecewise
A function is continuous on x=c on the closed interval [a,b] if
If it is continuous on the open interval (a,b) and lim as x approaches c from the left and right is equal with f(c)
If f is continuous on the closed interval [a,b] and k is any number between f(a) and f(b), then
Then there is at least one number c in [a,b] such that f(c)=k
Vertical Asymptotes
Factors on the denominators that are not repeated on the numerator
Given that lim as x approaches c f(x)=∞ and lim as x approaches c g(x)=L
Lim as x approaches c f(x) + g(x)=
∞ (DNE)
F(x) approached a different value from the left and right side of c
DNE
Given that lim as x approaches c f(x)=∞ and lim as x approaches c g(x)=L
Lim as x approaches c f(x) · g(x)=
∞, L > 0 (DNE)
Given that lim as x approaches c f(x)=∞ and lim as x approaches c g(x)=L
Lim as x approaches c f(x) · g(x) =
-∞, L
Given that lim as x approaches c f(x)=∞ and lim as x approaches c g(x)=L
Lim as x approaches c g(x)/f(x)=
0
∞/∞
Indeterminate form
0/0
Indeterminate form
Degree of numerator and denominator is the same
HA at y= (ratio of leading coefficients)
Degree of denominator is larger
HA at y=0
Degree of numerator is larger
No HA
If r is a positive rational number and c is any real number then,
Lim as x approaches ∞ c/x^r=
0
If r is a positive rational number and c is any real number then,
Lim as x approaches -∞ c/x^r=
0