GRE
xy
x + y
$$2^{-2002}$$ + $$2^{-2003}$$
$$2^{-2004}$$
$$\sqrt[3]{y}$$
$$\frac{y}{100}$$
The total area of the garden
50 square feet
$$x$$
$$4$$
a$$x^{4}$$
$$(ax)^{4}$$
The standard deviation of numbers 12, 13, 16, 19, 20
The standard deviation of numbers 12, 15, 16, 17, 20
25000 +道题目
199本备考书籍