👤

URGENT VA ROGGGGGG MULT!!!!!​

URGENT VA ROGGGGGG MULT class=

Răspuns :

Răspuns:

1/6-1/7=(7-6)/6×7=1/7×6

S=1/6-1/7+17-1/8+1/8-1/9..+..+1/74-1/75=

S=1/6-1/75=(75-6)/6×75=69/6×75=

23/2×75=23/150