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A  \(P=a.\)                                  

B \(P={{a}^{5}}.\)                               

C  \(P={{a}^{4}}.\)                              

D  \(P={{a}^{2}}.\)

A \(y={{\left( \frac{e}{2} \right)}^{x}}.\)                               

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

C \(y={{\left( \frac{3}{\pi } \right)}^{x}}.\)                            

D  \(y={{(0,7)}^{x}}.\) 

A  \(A=(3+a)a.\)             

B  \(A=(3-a)a.\)              

C  \(A=\frac{3+a}{a}.\)            

D  \(A=\frac{3-a}{a}.\)

A \(a.\)                            

B  \(\frac{a}{2}.\)                                              

C  \(a\sqrt{10}.\)                        

D \(\frac{a\sqrt{10}}{2}.\)

A 13.                                          

B  Vô số.                        

C 26.                                         

D 27.

A  \(K=2x.\)                               

B  \(K=x+1.\)                             

C \(K=x-1.\)                   

D  \(K=x.\)

A 4

B 3

C 1

D 2

A  \(T=22-12\sqrt{2}.\)              

B \(T=11-6\sqrt{2}.\)     

C  \(T=\frac{3\sqrt{2}-2}{2}.\) 

D \(T=\frac{15-6\sqrt{2}}{2}.\)

A 0

B 2

C 1

D 3

A \(xy'-1={{e}^{y}}.\)              

B  \(xy'+1=-{{e}^{y}}.\)                      

C  \(xy'-1=-{{e}^{y}}.\)                       

D  \(xy'+1={{e}^{y}}.\)

A \(x=\arctan m+k\pi \) hoặc  \(x=\pi -\arctan m+k\pi ,\,\,\left( k\in \mathbb{Z} \right).\)

B  \(x=\pm \arctan m+k\pi ,\,\,\left( k\in \mathbb{Z} \right).\)

C \(x=\arctan m+k2\pi ,\,\,\left( k\in \mathbb{Z} \right).\)

D  \(x=\arctan m+k\pi ,\,\,\left( k\in \mathbb{Z} \right).\)

A  Bước 1.                                 

B Bước 2.                                  

C  Bước 3.                                 

D  Bước 4.

A  \(m\in \left( 1;2 \right).\)                                

B \(m\in \left[ 2;+\infty  \right).\)                       

C  \(m\in \left( 2;+\infty  \right).\)                      

D \(m\in \left( -\infty ;2 \right).\)

A 4

B 1

C 3

D 2

A \(11.400.000\) đồng.               

B  \(6.790.000\) đồng.                

C  \(4.800.000\) đồng.                

D  \(14.400.000\) đồng.

A 12 năm.                                  

B  13 năm.                                 

C  14 năm.                                 

D 15 năm.

A  \(y=f'(a)(x-a)+f(a).\)                                      

B  \(y=f'(a)(x+a)+f(a).\)

C \(y=f(a)(x-a)+f'(a).\)                                                   

D \(y=f'(a)(x-a)-f(a).\)

A  \(\frac{4\pi {{a}^{2}}\sqrt{3}}{3}.\)                                  

B  \(2\pi {{a}^{2}}.\)                            

C \(4\pi {{a}^{2}}\)                             

D  \(\frac{8\pi {{a}^{2}}\sqrt{3}}{3}.\)

A Hàm số có giá trị nhỏ nhất bằng -1.                         

B  Đồ thị hàm số có đúng 2 đường tiệm cận đứng.

C  Đồ thị hàm số và trục hoành có 2 điểm chung.                     

D  Hàm số đồng biến trên khoảng \(\left( -1;+\infty  \right)\).

A  \(\frac{a\sqrt{21}}{14}.\)                             

B \(\frac{a\sqrt{21}}{7}.\)                                

C  \(\frac{a\sqrt{3}}{14}.\)                               

D  \(\frac{a\sqrt{3}}{7}.\)

A \(\underset{\left[ 1;2 \right]}{\mathop{\max }}\,f(x)=2.\)                

B \(\underset{\left[ -2;-1 \right]}{\mathop{\max }}\,f(x)=0.\)              

C  \(\underset{\left[ -3;0 \right]}{\mathop{\max }}\,f(x)=f(-3).\)         

D  \(\underset{\left[ 3;4 \right]}{\mathop{\max }}\,f(x)=f(4).\)

A \(y={{x}^{4}}+4{{x}^{2}}+3.\)                 

B  \(y=-{{x}^{4}}+4{{x}^{2}}+3.\)   

C  \(y={{x}^{4}}-4{{x}^{2}}+3.\)                 

D  \(y={{x}^{3}}-4{{x}^{2}}-3.\)

A  \({{\log }_{a}}\frac{b}{c}={{\log }_{a}}b-{{\log }_{a}}c.\)                                          

B \({{\log }_{a}}b=\frac{{{\log }_{c}}a}{{{\log }_{c}}b}.\)

C  \({{\log }_{a}}(bc)={{\log }_{a}}b+{{\log }_{a}}c.\)                                                      

D \({{\log }_{a}}b=\frac{{{\log }_{c}}b}{{{\log }_{c}}a}.\)

A \({{45}^{0}}.\)                                              

B \({{30}^{0}}.\)                                              

C  \({{60}^{0}}.\)                                             

D  \({{90}^{0}}.\)

A  \(\frac{a\sqrt{30}}{6}.\)                               

B \(\frac{a\sqrt{6}}{3}.\)                                  

C  \(\frac{a\sqrt{3}}{2}.\)                                 

D  \(a.\)

A \(AB=4.\)                                

B  \(AB=\sqrt{2}.\)                                

C \(AB=2\sqrt{2}.\)                               

D \(AB=4\sqrt{2}.\) 

A  \({{30}^{0}}.\)                                             

B  \({{45}^{0}}.\)                                             

C \({{60}^{0}}.\)                                    

D  \({{90}^{0}}.\)

A  \(f'(x)=\frac{1}{x+1}.\)                    

B  \(f'(x)=\frac{x}{(x+1)\ln 2}.\)           

C \(f'(x)=0.\)                   

D  \(f'(x)=\frac{1}{(x+1)\ln 2}.\)

A \(b<c<a.\)                                

B  \(a<c<b.\)                               

C  \(a<b<c.\)                               

D  \(c<a<b.\)

A 6

B 5

C 4

D 3

A  \({{M}_{0}}\left( -1;\frac{1}{4} \right).\)              

B  \({{M}_{0}}\left( -1;\frac{1}{2} \right).\)              

C \({{M}_{0}}\left( -1;1 \right).\)                            

D \({{M}_{0}}\left( -1;0 \right).\)

A  \(m=1.\)                                 

B  \(m=-4.\)                                

C \(m=-2.\)                                 

D  \(m=2.\)

A \(V=AB.BC.AA'.\)                

B \(V=\frac{1}{3}AB.BC.AA'.\)                     

C \(V=AB.AC.AA'.\)                

D \(V=AB.AC.AD.\)

A  Hàm số nghịch biến trên khoảng \((-1;3).\)                           

B  Hàm số đồng biến trên khoảng \((-1;+\infty ).\)

C Hàm số nghịch biến trên khoảng \((-1;1).\)                            

D  Hàm số đồng biến trên khoảng \((-\infty ;1).\) 

A  \(\frac{{{a}^{3}}}{4}.\)                                          

B \(\frac{{{a}^{3}}\sqrt{3}}{6}.\)                                  

C  \(\frac{3{{a}^{3}}}{4}.\)                            

D  \(\frac{{{a}^{3}}\sqrt{3}}{2}.\)

A  \({{S}_{\max }}=36\pi \,c{{m}^{2}}.\)                  

B  \({{S}_{\max }}=36\,c{{m}^{2}}.\)                       

C  \({{S}_{\max }}=96\pi \,c{{m}^{2}}.\)                  

D  \({{S}_{\max }}=18\,c{{m}^{2}}.\)

A  \({{30}^{0}}.\)                                             

B  \({{150}^{0}}.\)                               

C  \({{60}^{0}}.\)    

D  \({{120}^{0}}.\)

A Điểm \(A\left( \sqrt{3};10 \right)\)là điểm cực tiểu của (C).                         

B Điểm \(A\left( -\sqrt{3};10 \right)\)là điểm cực đại của (C).

C  Điểm \(A\left( -\sqrt{3};28 \right)\)là điểm cực đại của (C).            

D  Điểm \(A\left( 0;1 \right)\)là điểm cực đại của (C).

A 336,1 s.                                   

B 382,5 s.                                   

C  380,1 s.                                  

D  350,5 s.

A  \(\frac{3{{a}^{3}}\sqrt{6}}{8}.\)               

B  \(\frac{{{a}^{3}}\sqrt{6}}{2}.\)                             

C  \(\frac{{{a}^{3}}\sqrt{6}}{8}.\)                 

D  \(\frac{{{a}^{3}}\sqrt{6}}{4}.\)

A  -2.                                          

B  -4.                                          

C  0.                                           

D  \(\frac{7-\sqrt{7}}{7}.\)

A  \(\frac{a\sqrt{2}}{2}.\)                                 

B  \(\frac{a\sqrt{5}}{2}.\)                                 

C  \(\frac{a\sqrt{17}}{4}.\)                               

D  \(\frac{a\sqrt{11}}{4}.\)

A \(0<a<1.\)                               

B \(1<a<2017.\)             

C \(a\ge 2017.\)                          

D  \(0<a\le 2017.\)

A  \(k=\frac{1}{9}.\)                             

B  \(k=1.\)                                  

C  \(k=\sqrt{2}.\)                       

D \(k=-1.\) 

A  \(V=800\pi \,c{{m}^{3}}.\)              

B  \(V=1600\pi \,c{{m}^{3}}.\)            

C  \(V=\frac{1600\pi }{3}\,c{{m}^{3}}.\)                  

D \(V=\frac{800\pi }{3}\,c{{m}^{3}}.\)

A \(\frac{{{a}^{3}}\sqrt{2}}{6}.\)                              

B  \(\frac{{{a}^{3}}\sqrt{2}}{12}.\)                           

C  \(\frac{{{a}^{3}}\sqrt{2}}{24}.\)                           

D  \(\frac{{{a}^{3}}\sqrt{2}}{48}.\)