GRE
The product of ($$\sqrt{n+1}-\sqrt{n-1}$$) and ($$\sqrt{n+1}+\sqrt{n-1}$$)
2
The median of x, y and z
The median of $$x^{2}$$, $$y^{2}$$, and $$z^{2}$$
$$a^{b}$$
$$b^{a}$$
The number of members in the club who are older than 24 years and right-handed
10
25000 +道题目
236本备考书籍