问题 填空题 计算:limn→∞2n2-n+11+3+…+(2n-1)=______. 答案 limn→∞2n2-n+11+3+…+(2n-1)=limn→∞2n2-n+1n2(1+2n-1)=limn→∞2n2-n+1n2=2.故答案为:2.