GRE
The standard deviation of the numbers in list K
The standard deviation of the numbers in list M
The number of different possible values of P
25
The area of the region enclosed by the polygon
$$42x$$
$$|x|$$
2
$$x^2-7x+10$$
0
The greatest possible value of the product of two positive integers whose sum is 9
18
$$\frac{1}{x^2-x}$$
$$(-1)^{2n}+(-1)^{2n-1}$$
$$y$$
25000 +道题目
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