Cho lim f(x) = 1, lim g(x) = 2. Khi đó lim f(X) + g(x) bằng

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Cho \(\mathop {\lim }\limits_{x \to 0} f\left( x \right) = 1,\)\(\mathop {\lim }\limits_{x \to 0} g\left( x \right) = 2\). Khi đó \(\mathop {\lim }\limits_{x \to 0} \left[ {f\left( x \right) + g\left( x \right)} \right]\) bằng

\(1\).

\( - 1\).

\(3\)

\(0\).

Giải thích

Chọn C

\(\mathop {\lim }\limits_{x \to 0} \left[ {f\left( x \right) + g\left( x \right)} \right] = \mathop {\lim }\limits_{x \to 0} f\left( x \right) + \mathop {\lim }\limits_{x \to 0} g\left( x \right) = 1 + 2 = 3\).