E=2+5+9+14+...+4949+5049
2E=4+10+18+...+10098
2E-E=1.4+2.5+3.6+....+99.102
E=343200:2=171600
SUY RA TÍCH E = 2+5+9+14+....+4949+5049=171600
chúc bạn hok tốt
E=2+5+9+14+...+4949+5049
2E=4+10+18+...+10098
2E-E=1.4+2.5+3.6+....+99.102
E=343200:2=171600
SUY RA TÍCH E = 2+5+9+14+....+4949+5049=171600