Matematika

Pertanyaan

Selesaikan pakai Cara Soal no 42 Berikut
Selesaikan pakai Cara Soal no 42 Berikut

1 Jawaban

  • Lim √2x² + 2x - 3 - √2x² - 2x - 3 / 2
    x→~

    Lim 2x² + 2x - 3 - (2x² - 2x - 3)
    x→~ .. / 2 (√2x² + 2x - 3 + √2x² - 2x - 3)

    Lim 2x² + 2x - 3 - 2x² + 2x + 3
    x→~ .. / 2 (√2x² + 2x - 3 + √2x² - 2x - 3)

    Lim 2x
    x→~ .. / (√x² (2 + 2/x - 3/x² + √x² (2 - 2/x - 3/x²)

    Lim 2x
    x→~ .. / (x √2 + 2/x - 3/x² + x √2 - 2/x - 3/x²)

    Lim 2
    x→~ .. / √2 + 2/x - 3/x² + √2 - 2/x - 3/x²

    = 2 / √2 + 0 - 0 + √2 - 0 - 0

    = 2 / √2 + √2

    = 2 / 2√2

    = 1/√2

    = 1/√2 (√2 / √2)

    = √2 / 2

    = 1/2√2