Question

Gaseste toate numerele naturale 'a', astfel incat 6×a <42, a×a=16,5×a> 26

Answer 1

a< 42:6
a<7 ⇒ a∈{0,1,2,3,4,5,6}
sau 6x0=0< 42 ; 6 x 1=6<42 ; 6 x 2=12 <42; 6 x 3=18< 42
6 x 4=24<42 ; 6 x 5=30 <42 ; 6 x 6=36<42

a x a=16⇒ 4 x 4=16 ⇒ a=4

a>26:5⇒ a∈ { 6,7,8,9,10.....}
sau 5 x 6=30>26 ; 5 x 7=30>26 ; 5 x 8=40 > 26 ....

Answer 2

a =6543210
a=4
a=de la 6 in colo