Selesaikan pakai Cara Soal no 42 Berikut
Matematika
Febbb1
Pertanyaan
Selesaikan pakai Cara Soal no 42 Berikut
1 Jawaban
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1. Jawaban Robinn
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