Matematika

Pertanyaan

Limit mendekati 3
9-x2 per 4 - akar x2 + 7

1 Jawaban

  • jawab


    [tex] \lim_{x \to \ 3 } \frac{9 -x^2 }{4 - \sqrt[]{ x^{2} + 7} } \\ \lim_{x \to \ 3} \frac{9 -x^2 }{4 - \sqrt[]{ x^{2} + 7} } . \frac{{4 + \sqrt[]{ x^{2} + 7} }}{{4 + \sqrt[]{ x^{2} + 7} }} \\ \lim_{x \to \ 3 } \frac{9 -x^2 }{9 -x^2} \, \ (4 + \sqrt[]{ x^{2} + 7} )\\ = 4 + 4 \\ = 8[/tex]

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