Cho lim x suy ra 3 f(x) = 4, chứng minh rằng lim x suy ra 3 f(x) / 4 = 1
Cho\(\mathop {\lim }\limits_{x \to 3} f\left( x \right) = 4\), chứng minh rằng:
\(\mathop {\lim }\limits_{x \to 3} \frac{{f\left( x \right)}}{4} = 1\);
\(\mathop {\lim }\limits_{x \to 3} \frac{{f\left( x \right)}}{4} = \frac{{\mathop {\lim }\limits_{x \to 3} f\left( x \right)}}{{\mathop {\lim }\limits_{x \to 3} 4}} = \frac{4}{4} = 1\).