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Card 8 / 10:
limit
when it exists, the value, L , that the output of a function f ( x ) approaches as the input x gets closer and closer to a but does not equal a . The value of the output, f ( x ) , can get as close to L as we choose to make it by using input values of x sufficiently near to x = a , but not necessarily at x = a . Both a and L are real numbers, and L is denoted lim x → a f ( x ) = L .
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