本文为大家准备了GRE数学考试重要考点知识,便于考生GRE考试备考。
Set
A set is a collection of objects or things. Each object in a set a member or element of that set.Size of a set is the number of members in the set.
Example:
The set of even numbers between 2 and 10 is of size 5:{2,4,6,8,10}.
The set of primes between 2 and 10 is of size 4:{2,3,5,7}.
Remember:
Each member of set A belongs to A or is in the set A.
A set can not have repeating member:{1,3,1,2}is not a set.
Rearranging the order of the members does not change the set:{1,2,3}is same as{3,2,1}.
Combinations
Number of ways we can select n objects from a group of m distinct objects is m!/!).
Example:
Number of possible ways to pick 4 oscar nominations from a list of 50 movies is 50!/!)=50!/=50494847/24=230300.
Remember:
This does not apply if there are identical objects.
Permutation of Objects
The number of ways n distinct objects can be ordered is n.
Example:
Number of ways 6 people can from a queue is 6.
Number of ways 5 different cars can be parked in 5 parking spaces is 5.
Remember:
This does not apply if there are identical objects or ordering does not matter.
以上是小编为大家整理的新GRE数学考试重要考点知识,希望考生对以上内容适当复习,能取得好的GRE考试成绩!
汉诗英译:李清照 春残Late Spring
诗之灵性The Dexterity of Poetry
心灵鸡汤:生命的故事Story of Life
一人一世界,且行且珍惜
静心看世界Watch the World Go
请记住!你是与众不同的
美文阅读:空闲时光—度假去吧
美文欣赏:生命的故事Story of Life
父亲节:女儿写给父亲的一封信
美文赏析:面朝大海春暖花开
美文欣赏:和平之诗Peace Poetry
十大英语励志名言Sentences to Live by
看世界与我们擦身而过Watch the World Go by
心灵鸡汤:情暖今生The Gift
心灵鸡汤:26年来的26条人生感悟
美文赏析:面朝大海,春暖花开
英语故事:成功的人生不设限
走在奔三的路上:30岁女人该学会的7堂人生课
心灵鸡汤:选择=生活?Choice = Life??
散文欣赏:我为廷巴克图哭泣
智慧人生:你听见什么了? What Do You Hear?
愈艰难愈坚强十句经典给你坚持的勇气
西藏,十万盏酥油灯点亮天堂
汉诗英译:黄淮《墙头草》
美文欣赏:愿真情永在Lucky to Be Sad
心灵鸡汤:爱情的时间船Love and Time
美文欣赏:拿起笔还是放下
《与你同行》席慕容Walking With You
你的人生很精彩:别人从你身上偷不走的10件东西
汉诗英译:任雨玲《飘来了丁香》
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |