GRE
The range of the numbers $$(x_1)^{2}, (x_2)^{2}, (x_3)^{2}, (x_4)^{2}, and (x_5)^{2}$$
$$r^2$$
The number of odd integers in the first 400 terms of sequence S
The number of odd integers in the first 400 terms of sequence T
The least possible value of k
1
$$x^{-1}$$
$$y^{-1}$$
25000 +道题目
245本备考书籍