👤

calculați:
a)3+6+9+12+...+2019
c)5+10+15+20+...+2020
b)4+8+12+...+2020
d)7+14+21+...+2023


am nevoie de ex plssss​


Calculația369122019c51015202020b48122020d714212023am Nevoie De Ex Plssss class=