GRE
$$x^{4}y^{3}$$
0
The ones digit of x+y
5
The value of n if at least one of the groups consists of 3 people
6
x
m
$$x$$
$$y$$
$$(-1)^{p}$$
-1
The number of two-digit positive integers for which the units digit is not equal to the tens digit
80
The $$26^{th}$$ digit of N from left to right
The $$45^{th}$$ digit of N from left to right
25000 +道题目
269本备考书籍