👤
a fost răspuns

Calculati suma:
1/1*2+1/2*3+...+1/31*32 .

Răspuns :

Renatemambouko
1/1*2+1/2*3+...+1/31*32 =1/1-1/2 +1/2-1/3+....+1/31-1/32=
=1/1-1/32=(32-1)/32=31/32

Alte intrebari