Choose the best answer for the following sentence:The overall situation is good ___________ a few minor problems.A. but B. despite C. even if D. even though
Choose the correct sentence which is built from the words and phrases given:He / publish / spelling book / dictionary / changes / way / English was used in the USA.A. After he published a spelling book and a dictionary which made changes in the way English was used in the USA. B. He published a spelling book and a dictionary which made changes in the way English was used in the USA. C. He published a spelling book and a dictionary made changes in the way English was used in the USA. D. Due to he published a spelling book and a dictionary which made change in the way English was used in the USA.
Tích phân $\int\limits_{0}^{2}{\frac{5x-13}{{{x}^{2}}+5x-6}dx}$ bằngA. $\frac{43}{7}.$ B. $\frac{43}{7}\ln \frac{3}{4}.$ C. $-\frac{43}{7}\ln \frac{4}{3}.$ D. $-\frac{8}{7}.$
A. 3 B. -3 C. 13 D. -13
Tích phân $I=\int\limits_{-1}^{1}{\frac{|x|}{{{x}^{4}}-{{x}^{2}}-12}dx}$ bằngA. $\frac{2}{7}\ln \frac{4}{3}.$ B. $\frac{2}{7}\ln \frac{3}{4}.$ C. $\frac{1}{7}\ln \frac{3}{4}.$ D. $-\frac{1}{7}\ln \frac{3}{4}.$
Cho hàm số y= f( x) liên tục trên đoạn$\displaystyle \text{ }\!\![\!\!\text{ }a;b\text{ }\!\!]\!\!\text{ }\forall x\in \text{ }\!\![\!\!\text{ }a;b\text{ }\!\!]\!\!\text{ }.$Tính thể tích khối tròn xoay khi quay hình phẳng giới hạn bởi các đường y= f(x), y= 0 , x=a, x=b quanh Ox. Thể tích V được tính theo công thức:A. $V=\pi \int\limits_{a}^{b}{{{\text{ }\!\![\!\!\text{ }f(x)\text{ }\!\!]\!\!\text{ }}^{2}}dx}$ B. $V=\pi \int\limits_{a}^{b}{|f(x)|dx}$ C. $V=\int\limits_{a}^{b}{{{f}^{2}}(x)dx}$ D. $V=\pi \int\limits_{a}^{b}{f(x)dx}$
Tính $-\sqrt{{0,1}}.\sqrt{{0,4}}$ kết quả là:A. $0,2$ B. $-0,2$ C. $\frac{{-4}}{{100}}$ D. $\frac{4}{{100}}$
Tích phân $\displaystyle \int\limits_{\frac{-1}{3}}^{1}{{{e}^{3x+1}}dx}$ bằngA. $\frac{{{e}^{4}}-1}{3}.$ B. $1-{{e}^{4}}.$ C. ${{e}^{4}}-1.$ D. $\frac{1-{{e}^{4}}}{3}.$
Thực hiện phép tính $\frac{3}{2}\sqrt{6}+2\sqrt{{\frac{2}{3}}}-4\sqrt{{\frac{3}{2}}}$ ta có kết quả:A. $2\sqrt{6}$ B. $\sqrt{6}$ C. $\frac{{\sqrt{6}}}{6}$ D. $-\frac{{\sqrt{6}}}{6}$
Giá trị của biểu thức $M=\sqrt{{{{{\left( {1-\sqrt{3}} \right)}}^{2}}}}+\sqrt[3]{{{{{\left( {1-\sqrt{3}} \right)}}^{3}}}}$ làA. $2-2\sqrt{3}$ B. $2\sqrt{3}-2$ C. 2 D. 0
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