神马品牌网入江纱绫2016裸身:请问：奥赛题
来源：百度文库 编辑：神马品牌网 时间：2024/05/01 14:53:24
将1 4 5 6这4个数凑24
4÷(1-5÷6)=24
4开根得2，5-2=3，3+1=4，4*6=24
（5-4根号+3）*6=24
5的6-4次方-1，等于5的2次方-1，等于25-1 ，等于24
4*6=24,24乘1的5次方
4÷(1 - 5÷6)=24
4!-(6-5-1)
4!-(6-(5+1))
4!-6+5+1
4!-6+(5+1)
4!+(6-5-1)
4!+(6-(5+1))
4!+6-5-1
4!+6-(5+1)
----------------More are possible by moving 4! into the different positions and by replacing 6, 5, and 1s with (-(-6)), (-(-5)), and (-(-1))
(Root4)(1+5+6)
6(5+1-Root4)
4/(1-(5/6)
6/ ((5/4)-1)
(5^(6-4)) -1
4x6x1^5
((4!)^(6-5))x1
((4!)^(6-5))^1
5((4-1)!)-6
5x6-(4-1)!
5(((Root4) -1)!)-6
5x6-((Root4) -1)!
(5!/6)+4x1
((5!/6)+4)x1
((5!x1)/6)+4
(5!/6)+(4/1)
((5!/6)+4)/1
((5!/1)/6)+4
---------------------More can be produced by substituting 1 with 1! and Root1 in every instance
4÷(1 - 5÷6)=24
这才符合算24的要求
只用+ -* ÷和括号
啊，连阶乘也出来了