作业帮1.If x is an integer greater than 1 and if y = x + 1/x,which
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/11 18:27:30
1.If x is an integer greater than 1 and if y = x + 1/x,which of the following must be true?
I.y x II.y is an integer.III.xy > x^2
(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I,II,and III
I.y x II.y is an integer.III.xy > x^2
(A) I only
(B) III only
(C) I and II only
(D) I and III only
(E) I,II,and III
列表
x y
2 2+1/2
3 3+1/3
4 4+1/4
5 5+1/5
6 6+1/6
y =!x
套2 !2=2*1=2
套3 !3=3*2*1=6
因此 I项排除
y is an integer(整数),从上表可知y不可能是整数
xy > x^2
2*5/2 = 5 > 2*2=4
3*10/3 =10 > 3*3=9
因此III 是对的
答案是 (B) III only
x y
2 2+1/2
3 3+1/3
4 4+1/4
5 5+1/5
6 6+1/6
y =!x
套2 !2=2*1=2
套3 !3=3*2*1=6
因此 I项排除
y is an integer(整数),从上表可知y不可能是整数
xy > x^2
2*5/2 = 5 > 2*2=4
3*10/3 =10 > 3*3=9
因此III 是对的
答案是 (B) III only
1.If x is an integer greater than 1 and if y = x + 1/x,which
求教一道GRE数学题x is an integer greater than 1,比较3^(x+1)和4^x哪个大?
if "X" is an integer,which of the following will produce an
英语翻译谁能帮我翻译一下If 4x is 9 greater than the sum of x and 3y,then
【GRE数学】If x is an odd integer,for which of the following equ
一道看不懂的英文题1.If 2x < 100 and x is an integer,how many of the 2
1． If x and y are integers and xy＋x＾2 is oddh which of the f
第一个：Public Xuv Mysub4(x As Integer) x=3*x-1 if x
sat2 巴郎if n is an integer,what is the remainder when 3x(2^(n
1：Prove that if x is a positive integer that is not divisibl
If positive integer x is a multiple of 6 and positive intege
If the units digit of integer N is greater than 2,what is th