GRE
$$d$$
$$k^2$$
The number of different 2-member subsets of a set of 5 members
The number of different 3-member subsets of a set of 5 members
The remainder when $$3^{4n+2}+5$$ is divided by 10
4
$$y-x$$
3
$$3^{120}$$
$$6^{60}$$
$$\frac{8^28^{-4}}{8^3}$$
$$\frac{1}{2^{15}}$$
The perimeter of triangle AOB
$$\frac{5d}{3}$$
The area of triangular region ABG
$$\frac{1}{4}$$ of the area of triangular region ACE
$$y$$
5
25000 +道题目
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