CMR: 1/2-1/4+1/8-1/16+1/32-1/64<1/3
CMR 1/2-1/4+1/8-1/16+1/32-1/64<1/3
CMR
a,1/2-1/4+1/8-1/16+1/32-1/64<1/3
Cmr: A=1/2-1/4+1/8-1/16+1/32-1/64<1/3
CMR
1/2-1/4+1/8-1/16+1/32-1/64<1/3
1/3-2/3^2+3/3^3+4/3^4+...+99/3^99<3/16
Cmr
1/2-1/4+1/8-1/16+1/32-1/64<1/3
Giúp mk với
CMR:
a)1/2-1/4+1/8-1/16+1/32-1/64<1/3
b)1/3 - 2/3^2 + 3/3^3 - 4/3^4 +...+ 99/3^99 -100/3^100 < 3/16
cmr
a) 1/2 -1/4+1/8-1/16+1/32-1/64 <1/3
b) 1/3-2/3^2+3/3^3-4/3^4+...+99/3^99-100/3^100<3/16
CMR 1/2-1/4+1/8-1/16+1/32-1/64<1/3
b) 1/3-2/32+3/33-4/34+........+99/399-100/3100<3/16
