Question

9 номер плззз ну если можно и 10

Answer 1

a= 4-1/5-1/7-1/9-1/11
a)b=4-(4-1/5-1/7-1/9-1/11)=1/5+1/7+1/9+1/11

Answer 2

10) (1/10^(-3)+1/(2*10^(-3)))/4*10^(-3)

Answer 3

(1000+2000)/4000=0.75