Nilaix→25limx−20x+755x−15x−50 adalah ...

Pertanyaan

Nilai $begin mathsize 14px style limit as x rightwards arrow 25 of fraction numerator 5 x minus 15 square root of x minus 50 over denominator x minus 20 square root of x plus 75 end fraction end style$ adalah ...

I. Roy

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah A

Pembahasan

$begin mathsize 14px style limit as x rightwards arrow 25 of fraction numerator 5 x minus 15 square root of x minus 50 over denominator x minus 20 square root of x plus 75 end fraction equals limit as x rightwards arrow 25 of fraction numerator 5 open parentheses square root of x minus 5 close parentheses open parentheses square root of x plus 2 close parentheses over denominator open parentheses square root of x minus 5 close parentheses open parentheses square root of x minus 15 close parentheses end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 5 open parentheses square root of 25 plus 2 close parentheses over denominator square root of 25 minus 15 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 5 open parentheses 7 close parentheses over denominator 5 minus 15 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 35 over denominator negative 10 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals negative 7 over 2 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space end style$

Jadi, jawaban yang tepat adalah A

177

4.7 (15 rating)

Josep Vincensius