已知函数f(x)=cos^4 x-2sin x cos x-sin^4 x
2024-05-031个回答
已知函数f(x)=sin( - x)coswx+cos已知函数f(x)=sin(pai-wx)coswx+cos平方wx
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已知函数f(x)=2cos x sin(x+pai/6)-sin^2x+cos^2x.
2024-05-032个回答
已知函数Y=2sin^X+2sinXcosX-5cos^X 已知函数Y=2sin^X+2sinXcosX-5cos^X,
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已知函数f(x)=x2+(sinα-2cosα)x+1是偶函数 则sinαcosα=
2024-05-034个回答
sin cos三角函数题解已知α为锐角 sinα=3cosα 求sinαcosα
2024-05-032个回答
刚学完三角函数,1.已知COS∝/(1+SIN∝)=A,SIN∝/(1+COS∝)=B,A-B=k(COS∝-SIN∝)
2024-05-031个回答
would you please tell me _ a.what to do b.how to do it c.whe
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英语!英语!Please tell me_____next.A how to do B what to do it C
2024-05-037个回答
what will you do if you are asleep?please tell me the way to
2024-05-036个回答
Please tell me____to improve my English. 为什么填what to do
2024-05-035个回答
Would you please tell me what to do next? do 为及物动词后跟宾语,为什么wh
2024-05-032个回答
would you please tell me()next A how to do B what to do C wh
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Could you tell me ___ to do next,please?填what还是how?
2024-05-033个回答
Would you please tell me __ next?A.how to do B.what to do C.
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what do you want me to tell your mother Please tell her .abo
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Please tell me____to improve my English.为什么填what to do
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Please tell me__next?A how to do Bwhat to do C to do what D
2024-05-033个回答
Would you please tell me what to do it 对吗,how to do 后面可以接it吗
2024-05-031个回答
Please tell me what to do是一个完整的句子吗?what to do是作宾语吗
2024-05-034个回答
你能帮帮他们吗
only when you work hard ( ) you be able to make progress A.w
2024-05-081个回答
请翻译:Honey cannot only be eaten but also used to make things.
2024-05-084个回答
I like to be a policeman (because l want to make our city a
2024-05-081个回答
How to make myself stronger,eat only bitter to be guided by
2024-05-083个回答
(2012•徐汇区一模)在如图中的〇里填上适当的电表符号,电键闭合时电路能正常工作.
2024-05-081个回答
精彩回答
8米长的铁丝平均分成七段,每段长( )米,每段是全长的( )米.
2024-05-024个回答
把三米长的铁丝平均分成8份,每份是一米的百分之几?每份长几米?每段是这根铁丝的百分之几?
2024-05-023个回答
把十分之七米长的铁丝平均分成五段,每段长 〔〕 米,每段是全长的 〔〕 .
2024-05-022个回答
2024-05-024个回答
把一根5/8米长的铁丝平均分成5份每份是多少米?每份占全长几分之几?
2024-05-024个回答