Functions : Horizontal Asymptotes for Rational Functions

Case 1 : If the degree of numerator is lesser than the degree of the denominator then y = 0 is the equation of the asymptote.
Case 2 : If the degree of the numerator is the same as the degree of the denominator then y equals the ratio of the leading co - efficients in that order.
Case 3 : If the degree of numerator is greater than the degree of the denominator then Horizontal Asymptote doesn't exist for the function

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