Recent content by petroljose

Solved: Only simplifying:( (r-1)/(a*r^2 ) )*(1-1/r) by multiplying the sum 1/(1-1/r) by r so: r/(r-r/r)=r/(r-1) and then: ((r-1)/(a*r^2))*(r/(r-1))=1/ar

Posible solution With the formula to sum the infinite terms of a geometric series, I solve as in the figure attached.

Misprint in the link Excuse me, the link is: http://www.ugr.es/~dpto_am/OLD/docencia/Apuntes/Origenes_del_Calculo.pdf

Hello everybody, I'm trying to understand some steps in the evolution of calculus, and in a .pdf found in the internet I read the document: http://www.ugr.es/~mmartins/old_web/Docencia/Old/Docencia-Matematicas/Historia_de_la_matematica/clase_3-web.pdf , in pags. 14-15. I want to solve the to...