GRE
The number of lines in the plane that pass through points P, Q and T
1
The sum of interior angles of a square
The sum of any four interior angles of a pentagon
The sum of the measures of the interior angles of a square
The sum of the measures of 4 of the interior angles of a regular pentagon
$$x+y$$
$$\sqrt{(x^2+y^2)}$$
$$a_{6}$$
$$25^{3}(0.2)^{10}$$
N
125
The number of 3-digit integers all of whose digits are even (the same number could be used for more than once)
The number of 3-digit integers all of whose digits are odd (the same number could be used for more than once)
25000 +道题目
236本备考书籍