>
数学
>
已知函数fx=sin平方x+2根号3sinxcosx+3cos平方x,(1)求fx单调增区间(2)已知f(a)=3,a∈(0,π),求
人气:393 ℃ 时间:2019-08-20 20:43:29
解答
(1)f(x)=(sinx)^2+2√3sinxcosx+3(cosx)^2
=√3sin2x+cos2x+2
=2sin(2x+π/6)+2,
f(x)的增区间由(2k-1/2)π
推荐
函数f(x)=sin平方x+2倍根号3sinxcosx+3cos平方x.求函数f(x)的最小正周期;
已知函数f(x)=sin^2x+2倍根号下3sinxcosx+3cos^2x.求函数的单调递增区间
已知函数f(x)=sin^2x+根号3sinxcosx+1/2(1)求函数f(x)的最小正周期(2)求函数的单调区间
已知函数f(x)=sin^2x+根号3sinxcosx+2cos^2x,X属于r
已知函数f(x)=cosx*sin(x+π/3)-根号3cos²x+根号3/4,x∈R
关于太阳直射角.太阳高度角的知识
I like ___(旅行)very much.
糜竺 两字应该怎么发音?
猜你喜欢
64.I() some beautiful pictures by the old man.(A) gave (B) give (C) was giving (D) was given
将锌片放入下列溶液中过一段时间后溶液的质量减小的是 A,AgNO3 b,H2SO4 C,NaCl d,HCl
教师怎样理解“捧着一颗心来,不带半根草去”
大肠杆菌菌落形态
she often swims with her friends at the pool.(用 now 改写) She _ _ with her pool now.
英语单选题 They found the lecture hard ( )
今天距离七月八号还有多少天?
英语:用所给单词的正确形式填空:We____(play)football tomorrow 横线里填什么
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版