GRE
IxI
y
$$|x|-|y|$$
$$0$$
The greatest possible value of $$\frac{5}{x-y}, where 6 ≤ x ≤ 7 and -1 ≤ y ≤ 5$$
5
$$(4x)(3(-2x+1))$$
$$(4)(3x)(1-2x)$$
$$n^{2}$$
4m
$$x$$
$$y$$
x+y-1
x-y+1
The area of a circular region with radius $$r$$
The area of a circular region with radius $$r^{2}$$
25000 +道题目
236本备考书籍