y=x*(sin2x)
y'=sin2x+x(cos2x)*2
=sin2x+2x(cos2x)
猜你喜欢
- 1HE likes___music very much.A 、reading B 、listening C、 looking D、 listening to
- 2There are (five bottles of )orange juice in the fridge就打括号的地方提问
- 3运用唯物辩证法的知识,分析我国推进城镇化的要求
- 4已知一元二次方程x^2-3x+m-1=0(1)若方程有两个不相等的实数根,求m的取值范围;(2)若方程的两个相等的实
- 5there isn't going to be enough space to stand in on the earth.动词不定式后的介词in要吗?急 ,
- 6一质量为100克的物体,放入装满水的杯子中,溢出40克水,求该物体的密度是多少
- 7万用表测量欧姆在200处,显示2.6,实际电阻值是多少?
- 8Sometimes he helps his students w( ) English in his office.
- 9过氧化氢与二氧化锰反应一开始就会生成氧气吗?还是一段时间后
- 10秋天的怀念的第3段怎样理解母亲挡住的行为