GRE
100!
$$(50!)^{2}$$
The number of integer solutions of the equation $$3x^{2}+5x-2=0$$
1
The ratio of the area enclosed by C to the area enclosed by S
RS
3
$$(x-0.7)^{2}$$
$$(0.7-x)^{2}$$
$$\sqrt{x}$$+$$\sqrt{1-x}$$
The product of ($$\sqrt{n+1}-\sqrt{n-1}$$) and ($$\sqrt{n+1}+\sqrt{n-1}$$)
2
25000 +道题目
269本备考书籍