Bài tập 2.58 trang 86 SBT Toán 11

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

A. \(\dfrac{2}{3}\)

B. \(\dfrac{5}{{18}}\)

C. \(\dfrac{8}{9}\)

D. \(\dfrac{7}{{18}}\)

A. \(\dfrac{4}{{15}}\)

B. \(\dfrac{6}{{25}}\)

C. \(\dfrac{8}{{25}}\)

D. \(\dfrac{8}{{15}}\)

A. 0,56                                  

B. 0,55

C. 0,58                                   

D. 0,50

A. \(A = \left\{ 1 \right\};\,\,\,B = \left\{ {2,3,4,5,6} \right\}\)

B. \(C = \left\{ {1,4,5} \right\};\,\,\,B = \left\{ {2,3,6} \right\}\)

C. \(E = \left\{ {1,4,6} \right\};\,\,\,F = \left\{ {2,3} \right\}\)

D. \(\Omega ;\,\,\emptyset \)