为了求1+2+2的平方+2的立方+····················2的2010次方
为了求1+2+2的平方+2的立方+····················2的2008次方
的值,可令S=1+2+2的平方+2的立方+··············2的2008次方=2的2009次方,则2S=2+2的平方+2的立方+2的四次方+········+2的2009次方-1,所以1+2+2的平方+2的立方+············2的2008次方=2的2009次方-1,仿照以上方法计算出1+5+5的平方+5的立方+············+5的2009次方的值是( (A):5的2009次方-1 (B):5的2010次方-1 (C):5的2009次方-1/4 (D)5的2010次方-1/4
人气:222 ℃ 时间:2019-08-21 03:11:54
解答
1+2+2的平方+2的立方+····················2的2010次方=(1-2^2011)/(1-2)=2^2011-1
补充的选D
推荐
猜你喜欢
- He felt ---at the news that he failed the exam A.frustrating B.rustration C.rustrated D.rustrate
- 如何画英语脑图
- 用所给词的适当形式填空,1,Tom's (.result)of the English exam is pretty good.
- 孩子挤出来(改成比喻句)
- 2x的平方-3y-2(x的平方-2y)
- 一道简单的物理题(质点运动)
- 甲,乙两地相距162千米,一列慢车从甲站出发,每小时走48千米,一列快车从乙站开出,每小时走60千米,试问:1.两列火车同时相向而行,多长时间可以相遇?2.两车同时反向而行,几小时后两车相距270千米?3.若两车相向而行,慢车先开出1小时,
- Look!That woman looks like our teacher .we are going to put it on the day after tomorrow.