Đề kiểm tra 1 tiết Chương 1 ĐS & GT 11 năm 2019 Tr...

A. \(x = \frac{\pi }{6}.\)

B. \(x = \frac{\pi }{3}.\)

C. \(x = \frac{\pi }{{12}}.\)

D. \(x = \frac{{5\pi }}{6}.\)

A. \({\rm{D}} = R\backslash \left\{ {k\pi |k \in Z} \right\}.\)

B. \({\rm{D}} = R\backslash \left\{ {\frac{\pi }{2} + k\pi |k \in Z} \right\}.\)

C. \({\rm{D}} = R\backslash \left\{ {k2\pi |k \in Z} \right\}.\)

D. \(D=R\)

A. \(\,x = \frac{\pi }{8} + k\pi ;x = \frac{{3\pi }}{8} + k\pi \quad (k \in ).\)

B. \(\,x = \frac{\pi }{4} + k2\pi ;x = \frac{{3\pi }}{4} + k2\pi \,\quad (k \in Z).\)

C. \(\,x = \frac{\pi }{8} + k2\pi ;x = \frac{{3\pi }}{8} + k2\pi \quad (k \in Z).\)

D. \(\,x = \frac{\pi }{4} + k\pi ;x = \frac{{3\pi }}{4} + k\pi \quad (k \in Z).\)

A. 1 và - 1

B. 8 và 2

C. 8 và 5

D. 11 và - 1

A. \(m \in \left[ {0;\frac{1}{2}} \right).\)

B. \(m \in \left[ {0;\frac{1}{2}} \right] \cup \left\{ 1 \right\}.\)

C. \(m \in \left[ {0;\frac{1}{2}} \right) \cup \left\{ 1 \right\}.\)

D. \(m \in \left[ {0;\frac{1}{2}} \right].\)

A. \(\frac{{3\pi }}{2}.\)

B. \(\frac{{5\pi }}{4}.\)

C. \(\pi\)

D. \(\frac{{4\pi }}{3}.\)

A. \(x = k\pi ,x = \frac{\pi }{6} + k\frac{\pi }{3}\left( {k \in Z} \right)\)

B. \(x = \frac{\pi }{4} + k2\pi \left( {k \in Z} \right)\)

C. \(x = \frac{\pi }{3} + k\pi \left( {k \in Z} \right)\)

D. \(x = \frac{\pi }{3} + k2\pi ,x = \frac{\pi }{4} + k2\pi \left( {k \in Z} \right)\)

A. S = 3

B. S = 2

C. S = 4

D. S = 5

A. \(x =  \pm \frac{\pi }{4} + k\pi \;\left( {k \in Z} \right).\)

B. \(x =  \pm \frac{{3\pi }}{4} + k2\pi \;\left( {k \in Z} \right).\)

C. \(x =  \pm \frac{\pi }{4} + k2\pi \;\left( {k \in Z} \right).\)

D. \(x =  \pm \frac{{3\pi }}{4} + k\pi \;\left( {k \in Z} \right).\)

A. \(D = R\backslash \left\{ {\left. {k\pi } \right|k \in Z} \right\}.\)

B. \(D = R\backslash \left\{ {\left. { - \frac{\pi }{2} + k2\pi } \right|k \in Z} \right\}.\)

C. \(D = R\backslash \left\{ {\left. {\frac{\pi }{2} + k\pi } \right|k \in Z} \right\}.\)

D. \(D = R\backslash \left\{ {\left. {\frac{\pi }{2} + k2\pi } \right|k \in Z} \right\}.\)

A. \(x = k\frac{\pi }{3}(k \in Z).\)

B. \(x = \frac{\pi }{6} + k\pi (k \in Z).\)

C. \(x = k\frac{\pi }{4}(k \in Z).\)

D. \(x =  - \frac{\pi }{6} + k2\pi (k \in Z).\)

A. \(x = \frac{\pi }{4} + k\pi ,x = \arctan ( - \frac{3}{2}) + k\pi \;\left( {k \in Z} \right).\)

B. \(x = \frac{\pi }{4} + k\pi \;\left( {k \in Z} \right).\)

C. \(x = \arctan ( - \frac{3}{2}) + k\pi \;\left( {k \in Z} \right).\)

D. \(x = \frac{\pi }{4} + k\pi ,x = \arctan ( - 3) + k\pi \;\left( {k \in Z} \right).\)

A. \(y = \frac{x}{{\cos x}}.\)

B. \(y = \left| {\sin x} \right|.\)

C. \(y = {x^2}\sin x.\)

D. \(y = x + \sin x.\)

A. 4

B. 3

C. 1

D. 2

A. \(x =  - \frac{\pi }{3} + k\pi \;\left( {k \in Z} \right).\)

B. \(x = \frac{\pi }{6} + k\pi \;\left( {k \in Z} \right).\)

C. \(x = \frac{\pi }{3} + k\pi \;\left( {k \in Z} \right).\)

D. \(x = \frac{\pi }{3} + k2\pi \;\left( {k \in Z} \right).\)

A. 4

B. 6

C. 3

D. 5

A. \(\left[ { - 6;4} \right].\)

B. \(\left[ { - 5;5} \right].\)

C. \(\left[ { - 4;6} \right].\)

D. \(\left[ { 4;6} \right].\)

A. 1

B. 2

C. 3

D. 0

A. \(x =  \pm \frac{\pi }{6} + k\pi \;\left( {k \in Z} \right).\)

B. \(x =  \pm \frac{\pi }{3} + k2\pi \;\left( {k \in Z} \right).\)

C. \(x =  \pm \frac{{2\pi }}{3} + k2\pi \;\left( {k \in Z} \right).\)

D. \(x =  \pm \frac{\pi }{3} + k\pi \;\left( {k \in Z} \right).\)

A. \(m \in \left( { - \infty ; - 1} \right] \cup \left[ {\frac{5}{3}; + \infty } \right).\)

B. \(m \in \left( { - \infty ; - 1} \right) \cup \left( {\frac{5}{3}; + \infty } \right).\)

C. \(m \in \left( { - \frac{5}{3};1} \right).\)

D. \(m \in \left( { - 1;\frac{5}{3}} \right).\)

A. \(\sin 2x(\cos x + 1) = 0.\)

B. \(\sin 2x(2\cos x + 1) = 0.\)

C. \(2\cos x + 1 = 0.\)

D. \(\cos x(\sin x - \sin 2x) = 0.\)

A. 1

B. 2

C. 4

D. 3

A. \(495\pi .\)

B. \(520\pi .\)

C. \(512\pi .\)

D. \(528\pi .\)

A. \(3\sin x - 5\cos x = 5.\)

B. \(2\sin x - \cos x = 3.\)

C. \(\sqrt 2 \sin x + 3\cos x = 4.\)

D. \(\sin x - 3\cos x = 4.\)