Đề thi HK1 môn Toán lớp 11 trường THPT Chuyên Phan...

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

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

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

D  $x = \frac{\pi }{4} + k\frac{\pi }{2},\left( {k \in Z} \right)$.

A 2

B 4

C 3

D 1

A  $SO$, $O$ là tâm hình bình hành $ABCD$.              

B  $SD$

C  $SG$, $G$ là trung điểm $AB$.                                     

D  $SF$, $F$ là trung điểm $CD$.

A 1;5;17;29;61.                            

B 1;5;14;29;61.                            

C 1;5;13;28;61..                          

D  1;5;13;29;61

A $216$.                                     

B $120$.                                     

C $18$.                                        

D  $720$.

A  $n!$.                                       

B $\frac{{n!}}{{(n - k)!}}$.   

C  $\frac{{n!}}{{k!(n - k)!}}$.                                                    

D  $\frac{{n!}}{{k!}}$.

A 24

B 9

C 18

D 10

A  $\Delta \,\,AOD.$             

B $\Delta \,\,CIE.$                 

C $\Delta \,\,OBC.$               

D  $\Delta \,\,OCI.$

A $130$.                                     

B  $23$.                                       

C  $253$.                                    

D  $506$.

A  $- 9C_9^7$.                         

B  $- C_9^7$.                           

C $9C_9^7$.                             

D $C_9^7$.

A     36.     

B 2250.                                          

C 5040.                                          

D  181440

A $x \ne \pi  + k3\pi ,\left( {k \in Z} \right)$.                   

B $x \ne  - \frac{\pi }{{12}} + k3\pi ,\left( {k \in Z} \right)$.

C  $x \ne  - \frac{\pi }{2} + k6\pi ,\left( {k \in Z} \right)$.          

D  $x \ne \pi  + k6\pi ,\left( {k \in Z} \right)$.

A 1

B 2

C 3

D 4

A  ${a^2} + {b^2} > {c^2}$.  

B  ${a^2} + {b^2} \ge {c^2}$.                                                    

C ${a^2} + {b^2} \le {c^2}$.

D  ${a^2} + {b^2} < {c^2}$.

A 8

B 6

C 7

D 9

A $\frac{5}{{12}}.$                  

B $\frac{2}{{15}}$.                  

C $\frac{7}{{45}}$.                  

D  $\frac{8}{{15}}$.

A $x = \dfrac{\pi }{6} + k2\pi ,\left( {k \in Z} \right)$.     

B  $x = \dfrac{\pi }{3} + k2\pi ,\left( {k \in Z} \right)$.

C  $x = \dfrac{\pi }{6} + k\pi ,\left( {k \in Z} \right)$.       

D  $x = \dfrac{\pi }{3} + k\pi ,\left( {k \in Z} \right)$.

A A, J, M thẳng hàng.                                                                    

B

J là trung điểm AM.

C  $AM = \left( {ACD} \right) \cap \left( {ABG} \right)$.           

D  $DJ = \left( {ACD} \right) \cap \left( {BDJ} \right).$

A $x = \frac{\pi }{2} + k2\pi ,\left( {k \in Z} \right).$     

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

C  $x =  \pm \frac{\pi }{6} + k2\pi ,\left( {k \in Z} \right).$

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

A $SN.$                                       

B  $SA.$                                      

C $MN.$                                           

D  $SM.$

A a)

$x =  \pm \frac{\pi }{3} + k2\pi$

b)

$x = \frac{\pi }{2} + k2\pi$

B a)

$x =  \pm \frac{\pi }{4} + k2\pi$

b)

$x = \frac{\pi }{2} + k2\pi$

C a)

$x =  \pm \frac{\pi }{3} + k2\pi$

b)

$x = \frac{\pi }{6} + k2\pi$

D a)

$x =  \pm \frac{\pi }{3} - k2\pi$

b)

$x = \frac{\pi }{2} + k2\pi$