Matematika

Pertanyaan

nilai lim x menuju 3 2 - akar x + 1 / x - 3 =

1 Jawaban

  • jika gini
    lim x→3 (2 - √(x + 1))/(x - 3)
    irasionalkan
    = lim x→3 (4 - (x + 1))/((x - 3)(2 + √(x + 1)))
    = lim x→3 (3 - x)/((x - 3)(2 + √(x + 1)))
    = lim x→3 -(x - 3)/((x - 3)(2 + √(x + 1)))
    = lim x→3 -1/(2 + √(x + 1))
    = -1/(2 + √(3 + 1))
    = -1/4

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