Question

qual a soma dos numeros naturais de 1 a 300

Answer 1

1+2+3+4..+299+300=X                                                                                                        1+2+3+4..+299+300+1+2+3+4..+299+300=2X                                                                   (1+300)+(2+299)+(3+298)...+(298+3)+(29...                                           ACONTECE QUE 1+300=2+299=3+298=...=300+1=301 esse valor (301) é somado 300 vezes de (1 a 300) logo ...                                                                                                                        2x=301.300                                                                                                                         x=301..150   ......A SOMA VALE A 45150                                                            

Answer 2

sn=(a1+an).n/2

300=(1+300).300/2
45,150