>
数学
>
已知函数f(x)=(sinx-cosx)sinx,x∈R,则f(x)的最小正周期是______.
人气:427 ℃ 时间:2019-08-19 20:00:28
解答
∵f(x)=sin
2
x-sinxcosx=
1−cos2x
2
−
1
2
sin2x
=-
2
sin(2x+
π
4
)+
1
2
,
此时可得函数的最小正周期
T=
2π
2
=π
.
故答案为:π.
推荐
已知函数f(x)=(sinx+cos)^2求f(x)最小正周期
函数f(x)=cos(sinx)的最小正周期是什么
函数f(x)=(cosx+sinx)/(cos-sinx)的最小正周期是什么?
9.设函数f(x)=cos(2x+π/3)+sinx^2 (1)求函数f(x)的最小正周期
已知函数f(x)=sinx/2*cosx/2+cos^2(x/2)-2,求函数f(x)的最小正周期
具有相同动能的质子和阿发粒子垂直平行板间的匀强电场先后进入,当它们飞出电场时,两者的动能增量之比是多少
so it was often diffcult for him to remeber things 的中文
May I take your picture? 如何翻译
猜你喜欢
1.下列计算正确的是()
With his lips still trembling,he couldn't say a word.
When the teacher came into the classroom,he p___to be doing his homework.求解p开头的字母会是什么的
双曲线的参数方程是咋样的?
Who knows the address to Tom's home ----------( ) A I know B Bob knows C My mother does D We two
用一个成语概括一段话
用“浩浩荡荡”造句,形容水势盛大的样子
be out of 后面到底加不加the 什么时候加the
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版