Răspuns :
x=(224*(224+1))/2 +16*450
x=(224*225)/2 +
x=50400/2 + 7200
x=25200+7200
x=32400
√x=32400
√x=√32400
√x=180.
x=(224*225)/2 +
x=50400/2 + 7200
x=25200+7200
x=32400
√x=32400
√x=√32400
√x=180.
1+2+3+.....224=225*224/2=225*112=15 la puterea2*4 la puterea2*7.; A=15 la puterea2*2 la puterea4*7+2 la puterea4*2*15 la puterea2=>A=(15 la puterea2*2 la puterea4(7+2)=> A=15 la puterea2*4 la puterea2*3 la puterea2=>A=(15*4*3) la puterea2=>A=180 la puterea2