GRE
x
10
x+2y
y+2x
y
The average of x and z
x-y
$$\frac{n}{x}$$
n
$$\frac{x}{x+1}$$
1
The square of the average (arithmetic mean) of x, y and z
The average (arithmetic mean) of $$x^{2}$$,$$y^{2}$$and $$z^{2}$$
$$a^{c-d}$$
$$b^{d-c}$$
x+$$\frac{1}{x}$$
y+$$\frac{1}{y}$$
$$\sqrt{(x^{2})(y^{5})}$$
$$\sqrt{(x^{3})(y^{5})}$$
$$x^{2}$$$$z^{2}$$
$$y^{4}$$
$$2^{4}$$+$$\sqrt{x}$$
$$4^{2}$$+$$\sqrt{x^{2}}$$
$$3^{12}$$
$$5^{8}$$
25000 +道题目
198本备考书籍
