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EXCEL中如何使随机数在某个范围内,如在220~250范围内.
已知△ABC的面积为1CM2,如果AD=2 AC,BF=3BA,CE=4CB,求△DEF的面积
已知α为钝角 tan(α+π/4)=-1/7 求(1)tanα的值(2)求cos2α+1/√2 cos(α-π/4)-sin2α的值.(2)求cos2α+1/√2 cos(α-π/4)-sin2α的值。勾是根号。
In spring flowers _____(come) out and they _____(look) nice.用所给词的适当形式.
come and _____the photos,please.they are very nice.填see还是look at,为什么?
Please come and( )the bees A:look B:watch at C:look at D:looking 为什么?
现在的化妆前景怎么样?学完化妆后工资怎么样呢?还有去哪里学比较好?
come and ------ the photos ,please.they are very nice.A.see B.look C.look at D.watch说明理由谢谢
Look________(at,in)the nice picture,please括号里选哪个
已知函数f(x)=sin²a+根号3sinxcosx+2cos²x,x∈R(1)求最小周期和单调区已知函数f(x)=sin²a+根号3sinxcosx+2cos²x,x∈R(1)求最小周期和单调区间(2)由sin2x,x∈R怎样得到..
"Please come here as soon possible"的同义句是什么?Please come here as soon as_____ _____
请问这个公式对吗?tan^a+1=2tan a/cos^2 a
三角形计算公式 比如Tan COS这些是哪条边比哪条边
形容兔子的叫声
兔子是什么叫声麻烦说下有的吧
兔子叫声是什么样的?
用所个词造句:the palace/the King.
怎样用,the Brjtjsh Museum造句
the Palace Museum 位于哪里?
什么是反函数 如:y=3X+1 y=(X-1)/(X+1)的反函数是?
谁可以给我210道一元一次方程算术题?急用!没那么多给点也行!
一元一次方程50道算术题有答案!50道OK!坐等OK!完了加悬赏么100以上!
You should come to school early改同义句 You __come to school___
Please come to school early,______ _______?(反义疑问句)
Please come to school on time,Lily.(改为同义句) _____ _____ _____ _____ school,Lily.
y=x^2-2x(x
y=(2x-1)^2(x
求 Y=x^2+2x-1 (x>0)的反函数
y=x+2/2x+1的反函数
the summer palace 造句我不太会这个句子大家帮帮忙
computers the help summer camp needs with造句
如何求y=(x-2)除以(3x+4)的反函数