Bantuin soal limit akar[tex] \lim_{x \to \22} \frac{ \sqrt{x+2} - \sqrt{2x-1} }{ \sqrt{2x-3} - \sqrt{x} } = ...[/tex]
Matematika
melikacandra
Pertanyaan
Bantuin soal limit akar[tex] \lim_{x \to \22} \frac{ \sqrt{x+2} - \sqrt{2x-1} }{ \sqrt{2x-3} - \sqrt{x} } = ...[/tex]
1 Jawaban
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1. Jawaban Anonyme
jwab
sub x = 2
= (√(2+2) - √(2(2) - 1) / (√ (2(2) - 3) - √(2))
= (√4 - √3) / (√1 - √2) rasionalkan
= (2 - √3)(1 + √2) / (1 - √2)(1 + √2)
= (2 + 2√2 - √3 - √6) / (1 - 2)
= ( 2 + 2√2 - √3 - √6) / (-1)
= - 2 - 2√3 + √3 + √6