N
nghgh97


${L_1}\mathop { = \lim }\limits_{x \to 0} \dfrac{{\sqrt {1 + x + {x^2}} - \sqrt {1 - x + {x^2}} }}{{{x^2} - x}}$
${L_2}\mathop { = \lim }\limits_{x \to 0} \dfrac{x}{{\root 3 \of {x + 1} - 1}}$
${L_3}\mathop { = \lim }\limits_{x \to 1} \dfrac{{\root 4 \of x - 1}}{{x - 1}}$
${L_4}\mathop { = \lim }\limits_{x \to 0} \dfrac{{\root 5 \of {{{(1 + x)}^3}} - 1}}{x}$
${L_2}\mathop { = \lim }\limits_{x \to 0} \dfrac{x}{{\root 3 \of {x + 1} - 1}}$
${L_3}\mathop { = \lim }\limits_{x \to 1} \dfrac{{\root 4 \of x - 1}}{{x - 1}}$
${L_4}\mathop { = \lim }\limits_{x \to 0} \dfrac{{\root 5 \of {{{(1 + x)}^3}} - 1}}{x}$
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