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10 Cards in this Set
- Front
- Back
approaches
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let u be a variable quantity (function value or individual variable) and b be a real number
u app b u app b- u app b+ u app -inf u app +inf |
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u app b
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if the distance between u and b eventually remains less than every given positive distance
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u app b-
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if u approaches b and u<b
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u app b+
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if u approaches b and u>b
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u app -inf
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if u eventually remains less than every given real numb
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u app +inf
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if u eventually remains more than every given real number
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composition
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f=g if (1) f&g have the same domain (2) f(a)= g(a) for every a in the domain
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continuous
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a function f is continuous at c if
(a) f is defined at c (b) lim f(x) exists, and x->c (c) lim f(c) x->c |
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greater than
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a number a is greater than a number b if the difference a-b is positive
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limit
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let f be a function and c be either a real number, the symbol (+inf), or the symbol (-inf)
Finite limit: a real number L is a limit of f at c if f(x) approaches L as x approaches, but does not equal, c Infinite lmite: the limit of a function is infinite if either f(x)-> -inf or f(x)-> +inf as x approaches c |