⑵ ∵. 而... ∴, ⑶ ∵.∴, ⑷ . 查看更多

 

題目列表(包括答案和解析)

知函數(shù)y=sin2x+sin2x+3cos2x,求
(1)函數(shù)的最小值及此時(shí)的x的集合;
(2)函數(shù)的單調(diào)減區(qū)間;
(3)此函數(shù)的圖象可以由函數(shù)y=
2
sin2x
的圖象經(jīng)過(guò)怎樣變換而得到.

查看答案和解析>>

知函數(shù)y=sin2x+sin2x+3cos2x,求
(1)函數(shù)的最小值及此時(shí)的x的集合;
(2)函數(shù)的單調(diào)減區(qū)間;
(3)此函數(shù)的圖象可以由函數(shù)的圖象經(jīng)過(guò)怎樣變換而得到.

查看答案和解析>>

知函數(shù)y=sin2x+sin2x+3cos2x,求
(1)函數(shù)的最小值及此時(shí)的x的集合;
(2)函數(shù)的單調(diào)減區(qū)間;
(3)此函數(shù)的圖象可以由函數(shù)的圖象經(jīng)過(guò)怎樣變換而得到.

查看答案和解析>>

知函數(shù)y=sin2x+sin2x+3cos2x,求
(1)函數(shù)的最小值及此時(shí)的x的集合;
(2)函數(shù)的單調(diào)減區(qū)間;
(3)此函數(shù)的圖象可以由函數(shù)的圖象經(jīng)過(guò)怎樣變換而得到.

查看答案和解析>>

已知,給出以下四個(gè)命題,其中正確命題的序號(hào)為           

①若,則;

②直線(xiàn)是函數(shù)圖象的一條對(duì)稱(chēng)軸;

③在區(qū)間上函數(shù)是增函數(shù);

④函數(shù)的圖象可由的圖象向右平移個(gè)單位而得到。

 

查看答案和解析>>


同步練習(xí)冊(cè)答案