扫描二维码，直接登录
题库 / Prep2007E2-DS-22
Is ~$\frac{1}{p}> \frac{r}{r^{2}+2}$~
(1) p = r
(2) r > 0
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
在恒等变形的过程中，要考虑r的正负性会改变不等号的方向
登录 或 注册 后可以参加讨论