Date 1. tentukan nilai dari lim x² - 2x-di 28 x->-2 X+2 -
Jawab:
limit
[tex]\sf lim_{x\to -2} ~ \dfrac{x^2 -2x - 8}{x+2}[/tex]
[tex]\sf lim_{x\to -2} ~ \dfrac{ (x +2)(x - 4)}{x+2}[/tex]
[tex]\sf lim_{x\to -2} ~(x - 4) = -2 - 4 =- 6[/tex]
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