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Limits Of Polynomials and Rational Functions:
If P(x) and Q(x) are polynomials, then:
limx®a P(x) = P(a)
and
Limits can be approached from the negative ( or left ) or the positive ( or right ) side of a number denoted as:
limx®a- f(x) = b or limx®a+ f(x) = b
If limx®a- f(x) ¹ limx®a+ f(x) , then
limx®a f(x) does not exist
If limx®a- f(x) = limx®a+ f(x) = b , then
limx®a f(x) = b
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