Nilai dari x→−4lim​x−4x2−6x+8​=...

Pertanyaan

Nilai dari limit as x rightwards arrow negative 4 of fraction numerator x squared minus 6 x plus 8 over denominator x minus 4 end fraction equals... 

N. Puspita

Master Teacher

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Jawaban

nilai dari limit as x rightwards arrow negative 4 of fraction numerator x squared minus 6 x plus 8 over denominator x minus 4 end fraction equals negative 6.

Pembahasan

Pembahasan

Substitusi x = negative 4:

 table attributes columnalign right center left columnspacing 0px end attributes row cell limit as x rightwards arrow negative 4 of fraction numerator x squared minus 6 x plus 8 over denominator x minus 4 end fraction end cell equals cell fraction numerator open parentheses negative 4 close parentheses squared minus 6 open parentheses negative 4 close parentheses plus 8 over denominator negative 4 minus 4 end fraction end cell row blank equals cell fraction numerator 16 plus 24 plus 8 over denominator negative 8 end fraction end cell row blank equals cell fraction numerator 48 over denominator negative 8 end fraction end cell row blank equals cell negative 6 end cell end table

Jadi nilai dari limit as x rightwards arrow negative 4 of fraction numerator x squared minus 6 x plus 8 over denominator x minus 4 end fraction equals negative 6.

110

3.6 (5 rating)

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