A =1/2.5 + 1/5.8 + 1/8.11 + .... 1/152.155 = ?
? Tính:
1/2.5 + 1/5.8 + 1/8.11 +....+ 1/152.155
A= 1/2.5 + 1/5.8 + 1/8.11 + .....+ 1/150.153
A=1/2.5+1/5.8+1/8.11+...+1/92.95+1/95.98
A=1/2.5+1/5.8+1/8.11+....+1/92/95+1/95/98
b=1/2.5+1/5.8+1/8.11+...+1/92.95
D=1/2.5+1/5.8+1/8.11+...+1/1979.1982
A=1/2.5+1/5.8+1/8.11+.....+1/92.95+1/95.98
A=?
A= 1/2.5+1/5.8+1/8.11+...+1/92.95+1/95.98.
Tính tổng A
