not really i am kind of ok in math and stuff for the 问题 below they give 你 the what c= so 你 write it like this 9=0.999....10(1)=9.999...10(1)-1=9.999...-0.999... well at least thats how i think 你 do it.
posted 一年多以前
if i die young it will be because of math i think! :D