Вычислить предел:
а) lim (5x^2 -7x) / (1 – 2x^3)
x→∞
б) lim (tgx-sinx) / sin^2x
x→0
а) lim (5x^2 -7x) / (1 – 2x^3) =
= lim (5x^2 ) / (- 2x^3) =
= lim 5 / ( -2x) =
= 5/∞=0
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Answers & Comments
а) lim (5x^2 -7x) / (1 – 2x^3) =
x→∞
= lim (5x^2 ) / (- 2x^3) =
x→∞
= lim 5 / ( -2x) =
x→∞
= 5/∞=0