有下列四種變換方式:
①向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052103105895311010/SYS201205210311472812794579_ST.files/image002.png">(縱坐標(biāo)不變);
②橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052103105895311010/SYS201205210311472812794579_ST.files/image002.png">(縱坐標(biāo)不變),再向左平移;
③橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052103105895311010/SYS201205210311472812794579_ST.files/image002.png">(縱坐標(biāo)不變),再向左平移;
④向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052103105895311010/SYS201205210311472812794579_ST.files/image002.png">(縱坐標(biāo)不變);
其中能將正弦曲線的圖像變?yōu)?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052103105895311010/SYS201205210311472812794579_ST.files/image005.png">的圖像的是
A.①和③ B.①和② C.②和③ D.②和④
科目:高中數(shù)學(xué) 來源: 題型:
π |
4 |
1 |
2 |
1 |
2 |
π |
8 |
1 |
2 |
π |
4 |
π |
8 |
1 |
2 |
π |
4 |
A、①和② | B、①和③ |
C、②和③ | D、②和④ |
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科目:高中數(shù)學(xué) 來源: 題型:
①向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?SUB>;②橫坐標(biāo)變?yōu)樵瓉淼?SUB>,再向左平移;
③橫坐標(biāo)變?yōu)樵瓉淼?SUB>,再向左平移;④向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?SUB>.
其中能將正弦曲線y=sinx的圖象變?yōu)閥=sin(2x+)的圖象的是( )
A.①② B.①③ C.②③ D.②④
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科目:高中數(shù)學(xué) 來源:河南省焦作市09-10學(xué)年高一下學(xué)期期末考試(數(shù)學(xué))doc 題型:選擇題
有下列四種變換方式:
①向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052409405932815624/SYS201205240941349218748457_ST.files/image002.png">(縱坐標(biāo)不變)
②橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052409405932815624/SYS201205240941349218748457_ST.files/image002.png">(縱坐標(biāo)不變),再向左平移
③橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052409405932815624/SYS201205240941349218748457_ST.files/image002.png">(縱坐標(biāo)不變),再向左平移
④向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052409405932815624/SYS201205240941349218748457_ST.files/image002.png">(縱坐標(biāo)不變)
其中能將正弦曲線的圖像變?yōu)?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012052409405932815624/SYS201205240941349218748457_ST.files/image005.png">的圖像的是
A. ①和③ B. ①和② C.②和③ D.②和④
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科目:高中數(shù)學(xué) 來源:2010-2011內(nèi)蒙古高一第二學(xué)期期中考試?yán)頂?shù) 題型:選擇題
有下列四種變換方式:
①向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012051813233668756968/SYS201205181323533281838461_ST.files/image002.png">; ②橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012051813233668756968/SYS201205181323533281838461_ST.files/image002.png">,再向左平移;③橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012051813233668756968/SYS201205181323533281838461_ST.files/image002.png">,再向左平移; ④向左平移,再將橫坐標(biāo)變?yōu)樵瓉淼?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012051813233668756968/SYS201205181323533281838461_ST.files/image002.png">;其中能將正弦曲線的圖像變?yōu)?img src="http://thumb.1010pic.com/pic6/res/gzsx/web/STSource/2012051813233668756968/SYS201205181323533281838461_ST.files/image005.png">的圖像的是 ( )
A.①和② B.①和③ C.②和③ D.②和④
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