Đề thi HK1 môn Toán lớp 11 Trường THPT Xuân Hòa -...

A \(\Delta'\) : 3x + 4y+12 = 0

B \(\Delta'\): 3x + 4y – 12 = 0

C \(\Delta'\): 4x + 3y – 12 = 0

D \(\Delta'\): 4x + 3y + 12 = 0

A 630

B 360

C 4096

D 72

A \(\frac{\pi }{{12}}\)

B \(\frac{\pi }{8}\)

C \(\frac{\pi }{6}\)

D \(\frac{\pi }{3}\)

A \(\left[ {\dfrac{{ - 1}}{2};\dfrac{1}{2}} \right]\)

B \(R\)

C \(R\backslash \left\{ { \pm 2} \right\}\)

D \(\left( { - \infty ;2} \right)\)

A 511627735.

B 1099511627735

C 1099511627775

D 1099511627776.

A 5

B 3

C 7

D 1

A \({\left( {x + 1,5} \right)^2} + {\left( {y - 2} \right)^2} = 9\).

B \({\left( {x - 5} \right)^2} + {\left( {y - 3} \right)^2} = 36\).   

C \({\left( {x - 2} \right)^2} + {\left( {y - 1,5} \right)^2} = 9\).

D \({\left( {x - 1,5} \right)^2} + {\left( {y + 2} \right)^2} = 9\).

A \(\dfrac{2}{5}\)

B \(\dfrac{1}{{10}}\)

C \(\dfrac{3}{{10}}\)

D \(\dfrac{1}{5}\)

A \(\left\{ { - \dfrac{\pi }{3} + k2\pi |k \in Z} \right\}\)

B \(\left\{ { \pm \dfrac{\pi }{3} + k2\pi |k \in Z} \right\}\) 

C \(\left\{ {\dfrac{\pi }{3} + k2\pi |k \in Z} \right\}\)

D \(\left\{ { \pm \dfrac{{2\pi }}{3} + k2\pi |k \in Z} \right\}\)

A 6

B 5

C 15

D 10

A \(\dfrac{1}{{56}}\)

B \(\dfrac{3}{{28}}\).

C \(\dfrac{3}{{56}}\).

D \(\dfrac{1}{{14}}\)

A \({2018.2^{2017}}\)

B \({2019.2^{2018.}}\)

C \({2017.2^{2018}}\)

D \({2019.2^{2017}}\)

A \(\left[ {\begin{array}{*{20}{l}}{x = \dfrac{\pi }{2} + k\pi }\\{x = \dfrac{\pi }{6} + k2\pi }\\{x = \dfrac{{5\pi }}{6} + k2\pi }\end{array}} \right.{\mkern 1mu} {\mkern 1mu} \left( {k \in Z} \right)\)   

B \(\left[ \begin{array}{l}x = \dfrac{\pi }{2} + k\pi \\x =  \pm \dfrac{\pi }{6} + k2\pi \end{array} \right.{\mkern 1mu} {\mkern 1mu} \left( {k \in Z} \right)\)  

C \(\left[ \begin{array}{l}x = \dfrac{\pi }{2} + k2\pi \\x =  \pm \dfrac{\pi }{6} + k2\pi \end{array} \right.{\mkern 1mu} {\mkern 1mu} \left( {k \in Z} \right)\)

D \(\left[ \begin{array}{l}x = \dfrac{\pi }{2} + k\pi \\x =  \pm \dfrac{\pi }{6} + k\pi \end{array} \right.{\mkern 1mu} {\mkern 1mu} \left( {k \in Z} \right)\)

A \(\left[ \begin{array}{l}x = k\pi \\x = \dfrac{{2\pi }}{3} + k\pi \end{array} \right.\)

B \(\left[ \begin{array}{l}x = k2\pi \\x = \dfrac{{2\pi }}{3} + k2\pi \end{array} \right.\)

C \(x = k2\pi \)

D \(x = \dfrac{{2\pi }}{3} + k2\pi \)

A \(C_{20}^{10}{.2^{11}}{.3^9}.{x^{11}};\,\,C_{20}^{10}{.2^{11}}{.3^{19}}\)

B \(C_{20}^{10}{.2^9}{.3^{11}}.{x^9};\,\,C_{20}^{10}{.2^9}{.3^{11}}\)

C \( - C_{20}^{10}{.2^{10}}{.3^{10}}.{x^{10}};\,\, - C_{20}^{10}{.2^{10}}{.3^{10}}\)

D \(C_{20}^{10}{.2^{10}}{.3^{10}}.{x^{10}};\,\,C_{20}^{10}{.6^{10}}\)

A 16026

B 255024

C 10626

D 205524

A \(\frac{1}{{161}};\,\,\frac{1}{{1771}}\)

B \(\frac{1}{{1771}};\,\,\frac{1}{{161}}\)

C \(\frac{1}{{171}};\,\,\frac{1}{{1661}}\)

D \(\frac{1}{{1661}};\,\,\frac{1}{{171}}\)