Bài tập 72 trang 95 SGK Toán 11 NC

A. 180  

B. 160

C. 90 

D. 45

A. -11520  

B. 45

C. 256  

D. 11520

A. 168  

B. 170

C. 164  

D. 172

A. \(\dfrac{1}{5}\)   

B. \(\dfrac{9}{{10}}\)

C. \(\dfrac{1}{{20}}\)   

D. \(\dfrac{2}{5}\)

A. \(\dfrac{9}{{19}}\)    

B. \(\dfrac{{10}}{{19}}\)

C. \(\dfrac{1}{{38}}\)   

D. \(\dfrac{{19}}{9}\)

A. \(\dfrac{2}{7}\)            

B. \(\dfrac{1}{{21}}\)

C. \(\dfrac{{37}}{{42}}\)           

D. \(\dfrac{5}{{42}}\)

A. 2               

B. 3

C. 4               

D. 5

A. \(\dfrac{1}{{125}}\)

B. \(\dfrac{1}{{126}}\)

C. \(\dfrac{1}{{36}}\)

D. \(\dfrac{{13}}{{36}}\)

A. \(\dfrac{{1}}{{16}}\)

B. \(\dfrac{9}{{40}}\)

C. \(\dfrac{1}{{28}}\)

D. \(\dfrac{1}{{560}}\)