Matematika

Pertanyaan

[tex] \lim_{x \to \ 0} \sqrt{\frac{1 - cos x}{ x^{2} }[/tex]

1 Jawaban

  • Bab Limit
    Matematika SMA Kelas X

    lim √((1 - cos x)/(x²)
    x→0

    = lim (√(( 1 - cos² x) / (x² (1 + cos x))
    ...x→0

    = lim √((sin² x) / (x² (1 + cos x))
    ...x→0

    = lim √(1/(1 + cos x))
    ...x→0

    = √(1/2)
    = 1/2 √2

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