Mệnh đề nào dưới đây đúng?
A.\(\underset{x\,\to -\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-x \right)=0.\)
B. \(\underset{x\,\to \,+\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-2x \right)=+\,\infty .\)
C. \(\underset{x\,\to \,+\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-x \right)=\frac{1}{2}.\)
D. \(\underset{x\,\to \,-\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-2x \right)=-\,\infty .\)
A.\(\underset{x\,\to -\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-x \right)=0.\)
B. \(\underset{x\,\to \,+\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-2x \right)=+\,\infty .\)
C. \(\underset{x\,\to \,+\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-x \right)=\frac{1}{2}.\)
D. \(\underset{x\,\to \,-\,\infty }{\mathop{\lim }}\,\left( \sqrt{{{x}^{2}}+x}-2x \right)=-\,\infty .\)
Loga
Hóa Học lớp 12
