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Nilai dari x→∞lim​(4x2−8x+3​−2x−4)=....

Pertanyaan

Nilai space dari space limit as x rightwards arrow infinity of open parentheses square root of 4 x squared minus 8 x plus 3 end root minus 2 x minus 4 close parentheses equals....

  1. -8

  2. -6

  3. 2

  4. 6

  5. 8

F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

Jawaban terverifikasi

Pembahasan

I n g a t space r u m u s  limit as x rightwards arrow infinity of open parentheses square root of a x squared plus b x plus c end root space minus space square root of a x squared plus q x plus r end root close parentheses space equals space fraction numerator b minus q over denominator 2 square root of a end fraction  limit as x rightwards arrow infinity of open parentheses square root of 4 x squared minus 8 x plus 3 end root minus square root of left parenthesis 2 x plus 4 right parenthesis squared end root close parentheses  limit as x rightwards arrow infinity of open parentheses square root of 4 x squared minus 8 x plus 3 end root space minus space square root of 4 x squared plus 16 x plus 16 end root close parentheses space equals space fraction numerator negative 8 minus 16 over denominator 2 square root of 4 end fraction equals negative 24 over 4 equals negative 6

21

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