∴不等式f（π）＜f（a）等价为f（π）＜f（|a|），
则|a|＞π，即a＞π或a＜﹣π，
故实数a的取值范围是a＞π或a＜﹣π．
命题“对任意的x∈R，x3﹣x2+1≤0”的否定是（ ）
One day Eddie and Hobo looked at the ____. Eddie thought he saw a____but Hobo thought it was a ____. Because Hobo saw one ____. Eddie thought there were many bright ____and it was too____, so it couldn't be a plane.
“一切权力属于人民，因而一切权力的表现和运用必须体现人民的意志。当人民的权力被篡夺并被运用来压迫和奴役人民时，人民完全有权利举行起义，有权利用暴力来消灭篡权者”。以上材料表明卢梭（ ）
