👤

Ex 35.
Va roog!
DAU COROANA,PUNCTE,STELUTE SI MULTUMIRE


Ex 35 Va Roog DAU COROANAPUNCTESTELUTE SI MULTUMIRE class=

Răspuns :

1/2<1/2
1/4<1/2
1/6<1/2
1/8<1/2
....
1/100<1/2
Adunand relatiile de mai sus obtinem
1/2+1/4+1/6+1/8+.....+1/100<1/2·50
1/2+1/4+1/6+1/8+.....+1/100<25