皮皮学，免费搜题
登录
搜题
【单选题】
(2020-3考研)函数 在 上具有连续的导数,则( )A.
是奇函数;
B.
是偶函数;
C.
是奇函数;
D.
是偶函数.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】British scientists said teenagers are programmed to take risks because they enjoy the thrill of
A.
30. British scientists said teenagers are programmed to take risks because they enjoy the thrill of dangerous situations________ others. A．more than
B.
less than
C.
other than
D.
rather than
【简答题】计算 （1）sin245°- cos60°+ tan60°cos230° （2）
【简答题】求值：sin 2 45°-cos60°+tan60°?cos 2 30°．
【简答题】计算：（1）sin 2 45°-cos60°+tan60°cos 2 30°； （2） tan60°-sin60° cos 2 45°- 1 2 tan45°+tan60° ．
【简答题】计算题． （1） sin30°-cos45° cos60°-sin45° （2）（tan45°） 2 - cos 2 30°-2cos30°+1 ．
【单选题】Pupils usually would like to take ________ advice their teachers give.A．whicheverB．howeverC．what
A.
30. Pupils usually would like to take ________ advice their teachers give. A．whichever
B.
however
C.
whatever
D.
Whenever
【简答题】计算 si n 2 60°-tan30°cos30° tan45°-4co s 2 30° ．
相关题目：
参考解析：
知识点：
题目纠错 0
发布
