40 bài tập trắc nghiệm nhị thức Newton mức độ nhận...

A \(2018\)

B \(2014\)

C \(2013\)

D \(2015\)

A \(C_n^{k + 1}{a^{n - k + 1}}{b^{k + 1}}\)

B \(C_n^{k + 1}{a^{k + 1}}{b^{n - k + 1}}\)

C \(C_n^{k + 1}{a^{n - k}}{b^{n - k}}\)

D \(C_n^k{a^{n - k}}{b^k}\)

A \(C_{10}^6\)   

B \(A_{10}^6\)

C \(6!\)    

D \(\frac{{10!}}{{6!}}\)  

A \(C_8^3{.2^3}{.3^5}\)           

B \(C_8^3{.2^5}{.3^3}\)          

C \( - C_8^5{.2^5}{.3^3}\)

D \(C_8^5{.2^3}{.3^5}\)

A \(32{x^5} + 16{x^4}y + 8{x^3}{y^2} + 4{x^2}{y^3} + 2x{y^4} + {y^5}.\)

B \(32{x^5} + 80{x^4}y + 80{x^3}{y^2} + 40{x^2}{y^3} + 10x{y^4} + {y^5}.\)

C \(2{x^5} + 10{x^4}y + 20{x^3}{y^2} + 20{x^2}{y^3} + 10x{y^4} + {y^5}.\)

D \(32{x^5} + 10000{x^4}y{\rm{ }} + 80000{x^3}{y^2} + 400{x^2}{y^3} + 10x{y^4} + {y^5}.\)

A \( - 9C_9^7{x^7}\)

B \(9C_9^7\)

C \( - 9C_9^7\)

D \(9C_9^7{x^7}\)

A \(T = {2^n}\)

B \(T = {4^n}\)

C \(T = {2^n} + 1\)

D \(T = {2^n} - 1\)

A

 \(C_{20}^{7}\)                                   

B

 \(A_{20}^{7}\)                                               

C

 \({{A}_{20}}13\)                                 

D  \({{P}_{7}}\)

A \(-\,810.\)

B  \(826.\) 

C \(810.\) 

D \(421.\)

A \(C_{8}^{3}{{.2}^{3}}\)                    

B \(-C_{8}^{3}{{2}^{3}}\)                  

C   \(-C_{8}^{5}{{2}^{5}}\)                                 

D \(C_{8}^{5}{{.2}^{5}}\)

A 120                                          

B -960                 

C 960                                        

D  -120

A

 \(100.\)                                   

B

 \(102.\)                                   

C

 \(99.\)                                     

D  \(101.\)

A 9

B 10

C 12

D 11

A  -240.                          

B  -810.                          

C 810.                                        

D  240.

A \(70{y^4}.\)                          

B \(60{y^4}.\)                       

C \(50{y^4}.\)                    

D \(40{y^4}.\)

A \({2^{10}}C_{15}^6\)

B \({2^9}C_{15}^6\)

C \({2^9}C_{15}^5\)

D \({2^{10}}C_{15}^5\)

A \(4000\).

B \(2700\).

C \(3003\).

D \(3600\).

A \(2021\)

B \(2020\)

C \( - 1\)

D \(1\)

A \(68\).

B \(286{x^7}\).

C \(1716\).

D \(286\).

A \({2^6}.A_{10}^6\)

B \({2^4}.C_{10}^4\)

C \({2^6}.C_{10}^6\)

D \({2^4}.A_{10}^4\)

A \(17010\)

B \(295245\)

C \(153290\)

D \(405\)

A \(S = {3^n}\)

B \(S = {2^n}\)

C \(S = {3.2^n}\)

D \(S = {4^n}\)

A \(9\)     

B \(10\)

C \(11\)

D Không tồn tại

A \({a_{1000}} + {a_{999}} + ... + {a_1} = {2^n}\)     

B \({a_{1000}} + {a_{999}} + ... + {a_1} = {2^n} - 1\)

C \({a_{1000}} + {a_{999}} + ... + {a_1} = 1\)

D \({a_{1000}} + {a_{999}} + ... + {a_1} = 0\)

A \(S = {2^n} - 1\)

B \(S = {2^n}\)

C .\(S = {2^{n - 1}}\)     

D \(S = {2^n} + 1\)

A \(S = {2^{2n}}\)

B \(S = {2^{2n}} - 1\)    

C \(S = {2^n}\)

D \(S = {2^{2n}} + 1\)

A \({2^4}C_6^2\)

B \({2^2}C_6^2\)

C \( - {2^4}C_6^4\)

D \( - {2^2}C_6^4\)

A \( - 28\)

B \(28\)

C \(56\)

D \( - 56\)

A \(70{y^4}\)

B \(60{y^4}\)

C \(50{y^4}\)

D \(40{y^4}\)

A \(S = 1\)

B \(S =  - 1\)       

C \(S = 0\)

D \(S = 8192\)

A \(1\)     

B \( - 1\)

C \({\left( { - 1} \right)^n}\)

D \({3^n}\)

A \(480\)

B \(210\)

C \(840\)  

D \(180\)

A \(792\)

B \( - 792\)

C \( - 924\)

D \(495\)

A \(C_{10}^8\)

B \(C_{10}^2{.2^8}\)

C \(C_{10}^2\)

D \( - C_{10}^2{.2^8}\)

A \({\left( {1 - 2x} \right)^5}\)

B \({\left( {1 + 2x} \right)^5}\)

C \({\left( {2x - 1} \right)^5}\)

D \({\left( {x - 1} \right)^5}\)

A \( - 16C_{20}^{16}{.3^{16}}\)

B \(16C_{20}^{16}{.3^{16}}\)

C \(C_{20}^4{.2^{16}}{.3^4}\)

D \( - C_{20}^4{.2^{16}}{.3^4}\)

A \(C_{45}^{15}\)

B \( - C_{45}^5\)

C \( - C_{45}^{15}\)

D \(C_{45}^{30}\)

A \(525\)

B \(238\)

C \(485\)  

D \(165\)

A \( - C_9^3{x^3}.\)

B \(\dfrac{1}{8}C_9^3{x^3}.\)

C \(\dfrac{1}{8}C_9^3.\)

D \(C_9^3{x^3}.\)