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已知函数f（x）=x3+x,对任意实数m∈【—2,2】,都有f（mx—2）+f（x）＜0,求实数x的取值范围 ... 已知函数f(x)=mx^2+2x+m(m为实数)在区间[-2,2]上是增函数,求实数m的取值范围. I don't like the place where the weather is hot.能不能把where改成that呀?为啥这句不是状语从句内? this is the place错句for we This is the place for us和This is a place for us有什么区别 氯原子在化学反应中易的电子,形成什么——（填粒子符号） 氧原子属于典型的...元素,在化学反应中易.电子,形成的离子结构示意图为.离子符号为.在原子序数1〜18的元素中,.元素的化学性质与氧最相似 上面“入”下面“肉”是什么字 ,为什么百度不给提问这个字,没见过这字 函数y=2sin(x/3-x/4)+1的最小正周期为___用什么知识算的 已知函数fx=2sin(2x+3分之派 求函数y=fx的最小正周期和最小直并求取最小或最大时x满足的条件 求函数fx在区间[0，派]的单调减区间 已知函数y=1/2sin【（x+π）/A】（A>0）的最小正周期为3π,则A= 函数y=2sin²x-1的最小正周期为? 请问GAY是什么意思`` 对应用统计学的看法越详细越好..字数不限... 我永远爱你的英文怎么拼写 函数y=根号2sin(x/2+π/3)的最小正周期是 函数y=√2sin(x/2+兀/3)的最小正周期是 请问,gay是什么意思? The weather in China is different from;____ in Australia.The weather in China is different from ­­____ in Australia.A it b THAT c one d ones可是为什么A不可以? 已知函数y=1-2sin(ωx-π/3)(ω>0)的最小正周期是4(1)求函数的最值及取的最值时自变量x的取值集合(2)求函数的单调区间 the weather in Australia is different from (China/in China)哪一个正确 the weather different that in china in Australia from is China is different from Australia ___weather 怎么做啊 1对1提问有好处吗? The weather in China is _____ in Australia .A_different form B_different form that C_that same as D_the same as that 化石吟第一节不断提问有什么作用 求详解 .若函数fx=x-4 /mx²+4mx+3的定义域为R,求实数m的范围 已知函数y=√mx²-6mx+m+8的定义域是R,求实数m的取值范围.我知道答案,y=√(mx²-6mx+m+8)的定义域是R∴mx²-6mx+m+8≥0恒成立m=0不等式即8≥0,符合题意m≠0时,不等式为二次不等式,恒成立的条 Meimei had a busy day yesterday.She g_ up before seven o'clock in the morning,and quick w_ her hands and face.She got to school e_.She h_ a little rest after lunch,but she worked home.Her pen was broken,so she n_a new one .On her way she b_a new pen 函数y=2sin(2x-π/6) 的最小正周期是? 函数y =2sin(1/2·x+派/6 )的最小正周期是? 画出函数y=5/2sin(x/2+π/6)在一个周期内的图像,并求出这个函数的振幅，周期，频率，相位，初相