Question

verificati daca numerele sunt inverse :
a) 4/5 si 5/4
b)25/9 si 3/5
c)3/21 si 7
d) 1 2/3 si 0,6

Answer 1

a) $\frac{4}{5}si \frac{5}{4}$ adevarat 
b) [tex] \frac{25}{9} si \frac{3}{5} [/tex]   fals 
c)3/21 si 7
3/21=1/7   ⇒adevarat 
d)$1 \frac{2}{3}$=5/3 
   0,6=6/10=3/5⇒adevarat