Ответы на вопрос:
1способ lim x-> 3 (x^2 - 2x - 3)/(x^2 - 9) = [ 0/0] = = lim x-> 3 (x - 3)*(x + 1)/(x - 3)*(x + 3) = = lim x-> 3 (x + 1)/(x + 3) = (3 + 1)/(3 + 3) = 4/6 = 2/3 2 способ lim x-> 3 (x^2 - 2x - 3)/(x^2 - 9) = [ 0/0] = = lim x-> 3 (2x - 2)/2x = (6 - 2)/6 = 4/6 = 2/3
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