Răspuns :
Răspuns:
Explicație pas cu pas:
x = 6/24 + 11/44 + 16/64 + 21/84 = 1/4 + 1/4 + 1/4 + 1/4 = 1
y = 1/1275 + 2/1275 + 3/1275 + ...+ 50/1275
1 + 2 + 3 + ...+ 50 = 50*51/2 = 25*51 = 1275
y = (1 + 2 + 3 + ...+ 50)/1275 = 1275/1275 = 1
x - y = 1 - 1 = 0