Question

初中一道数学题!~~~~~~~~~急求~~~~~

Answer 1

设段数为x

则依题意得：n=0时,x=1,

n=1,x=5,

n=2,x=9,

n=3,x=13,

…

所以当n=n时,x=4n+1．即x=4×2011+1=8045