已知当x=a时,代数式3(3x+1)(x-1)-(3x-2)^2的值是-7,又当y=b时,代数式..
已知当x=a时,代数式3(3x+1)(x-1)-(3x-2)^2的值是-7,又当y=b时,代数式..
已知当x=a时,代数式3(3x+1)(x-1)-(3x-2)^2的值是-7,又当y=b时,代数式(y-5)(5+y)-y(y+5)的值是0,求多项式2(3a+2b)(3a-2b)-(4a-b)^2
已知当x=a时,代数式3(3x+1)(x-1)-(3x-2)^2的值是-7,又当y=b时,代数式(y-5)(5+y)-y(y+5)的值是0,求多项式2(3a+2b)(3a-2b)-(4a-b)^2
可能相似的问题
-
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
2024-05-031个回答
-
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,
2024-05-031个回答
-
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
2024-05-034个回答
-
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
2024-05-031个回答
-
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.
2024-05-032个回答
-
what do you want me to tell your mother Please tell her .abo
2024-05-034个回答
-
Please tell me____to improve my English.为什么填what to do
2024-05-031个回答
-
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
-
在阅读有关“超导现象”资料之后，小宇同学运用逆向思维的方法提出问题：金属导体的电阻随温度升高而变大吗？于是小宇设计出如图
2024-05-061个回答
-
关于映射的个数问题关于这个问题：集合M={-2,0,1},N={1,2,3},映射f:M到N,对任意x∈M,都有x+f(
2024-05-062个回答
-
2024-05-0612个回答
-
关于映射与计数原理问题A={-1,0,1},b={2,3,4,5,7},若F表示从集合A到集合B的映射,那么满足X+F（
2024-05-061个回答
-
函数映射问题,集合A=(1,2,3) 集合B=(3,4) 从A到B的映射满足f(3)=3,则这样的映射有几个?
2024-05-061个回答
精彩回答
-
2024-05-025个回答
-
2024-05-022个回答
-
2024-05-024个回答
-
求学霸帮忙，帮忙写一篇关于 My Summer Holiday 的作文！
2024-05-022个回答
-
2024-05-022个回答