首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
已知α为锐角,且tanα=,则sin2α=( )
查看本题答案
包含此试题的试卷
高一下学期数学《2017级高一年级(数学)学科限时小练习材料序号:11》真题及答案
点击查看
你可能感兴趣的试题
已知αβ均为锐角且sinα=tanα-β=-.1求sinα-β的值2求cosβ的值.
已知3sinπ+α=且α是第三象限角则sin2α﹣tanα=.
已知αβ为锐角tanα﹣β=sin2β求证tanα+tanβ=2tan2β
已知α为第四象限角且cosα﹣|sinα﹣cosα|=﹣求tanαsin2αcos2α的值.
已知αβ均为锐角且sinα=tanα-β=-.1求sinα-β的值2求cosβ的值.
已知sin2θ
已知锐角αβ满足tanα-β=sin2β求证tanα+tanβ=2tan2β.
下列各式中值为正数的是
cos2﹣sin2
tan3•cos2
sin2•tan2
cos2•sin2
【问题学习】小芸在小组学习时问小娟这样一个问题已知α为锐角且sinα=求sin2α的值.小娟是这样给
已知αβ都是锐角且sinα<sinβ则下列关系中正确的是
α>β
tanα>tanβ
cosα>cosβ
cotα<tanβ
已知3sinπ+α=且α是第三象限角则sin2α﹣tanα=.
.已知αβ均为锐角且cosα+β=sinα-β则tanα=________.
设sin2α=-sinαα∈则tan2α=________.
【阅读学习】刘老师提出这样一个问题已知α为锐角且tanα=求sin2α的值.小娟是这样解决的如图1在
【阅读学习】刘老师提出这样一个问题已知α为锐角且tanα=求sin2α的值.小娟是这样解决的如图1在
已知tan45°+θ=3求sin2θ-2cos2θ的值
已知αβ都是锐角且sinβ=sinαcosα+β.1当α+β=求tanβ的值2当tanβ取最大值时求
已知且α是第三象限的角则sin2α﹣tanα=.
已知角为锐角且sinα=3/5则tanα+cotα=_________
已知tanα=求下列式子的值.12sin2α﹣sin2α
热门试题
更多
JanedreamsofbeingapShepracticesthepianoeveryday
Theboyisoftenheardinthemusicroom.Hesingsverywell. A.practicesinging B.topracticesinging C.practicedtosing D.practicessinging
Tosavepeople’slivesisthedoctorduty.
—Fatherissleeping.WouldyoumindtheTVTom?—Notatall.I'lldoitrightaway.A.turningoff B.toturnon C.turningup D.turnoff
Ithinkthosearticleinthenewspaperareinteresting.
Herfatherisataxidriveandheisverybusy.
Thedoctorsdidwhattheycouldsavethegirl.
IhappenedmeetafriendofmineonmywaytoNanjing.
I'mgoingtosendacardmyteacher.A.to B.for C.at D.with
It'scarelessthesamemistakeagaininyourarticle.A.foryoutomake B.foryoumaking C.ofyoutomake D.ofyoumaking
Mybrotherisasoldier军人andhejoinedtheathreeyearsago.
Ican'tfindmydictionary.Idon'tknow.A.wheredidIputit B.whendidIbuyitC.whereIputit D.whenIboughtit
Thelittlegirl loseherwayinthestreetyesterday.
IwanttobeascientistlikeTuYouyouwhenIinthefuture. A.growup B.wakeup C.stayup D.takeup
DoyouknowwhoseiPhone7thisis? Letmesee.OhIt's.A.hers B.her C.him D.their
—Didyouwatchthefootballgameyesterday?—YesIdid.Johnisreallyadarkhorse.Nobodyhimtogosofar.A.wanted B.encouraged C.expected D.hoped
Billlikesflyingandhewantstobeapinthefuture.
—Ihaven'tseenmygrandparentsforlong.I'mtoobusythemthesedays.—Whynotcalltheminstead?A.visited B.tovisit C.visiting D.visit
Mr.Smithkeptonworkalthoughhewastired.
IfoundaletteronthefloorwhenIcameintotheclassroom.A.lying B.lay C.lie D.lies
Didyoutakemthatthedoctorgaveyouyesterday?1feelthatyouseemtobeworsetoday.
Herlifehasseemedmsincehersondied.
TheyoungerstudentsinAustraliacanstheirhomeworktotheirteachersbye-mailathome.
LiMingissocarefulthathealwayslooksoverhisexercisestotherearenomistakes. A.makesure B.findout C.thinkof D.lookfor
Nextweekendtheyanactionmovie. A.watch B.watched C.arewatching D.aregoingtowatch
—Lucywhat’sontable?—Ohit’sarticleabouthowtolearnEnglishwell.A.a;a B.an;the C.the;an D./;an
Thereafilmthisevening.A.isgoingtohave B.has C.have D.isgoingtobe
Jimmyisinterestedinscienceandhewantstobeascience.
PleasegiveMaryacalltomakethatshewillarriveontime.
Hesaidhewouldcomebutdidn’taatlast.
热门题库
更多
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库
高一上学期物理
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库