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已知函数f（x）=x-2分之x+1,x属于【3,5】 判断单调性,证明 求函数最大值和最小值 你的答案我实在是看不懂解释下 34带入后面那个式子怎么化简的啊, 答案也看不懂. 这题答案看不懂ina怎么来的?对数学得不好-= = 你回答的,孩子看不懂呀 已知函数f(x)=x-1分之2（x属于[2,6]）,求函数的最大值和最小值 已知函数f(x)=x+1分之2x-1,求f(x)在[-1,2]上的最大值和最小值 已知函数f(x)=x分之1（x∈[1,2]),求函数最大值和最小值怎么求 二次函数y＝ax的平方＋bx＋c经过(1,0)对称轴是直线x＝－1 则关于x的一元二次方程ax的平方＋bx＋c＝0的一个 已知函数f(x)=2a+bsinx的最大值为3,最小值为1,求函数y=-4asin2分之bx的最小正周期与最大值,最小值尽量速度点哈．． 上角波浪线变成直线了数字1前面的小波浪线变成直线了,怎么设置回来呢?这个小波浪线在QQ输入里是直线,在别的地方输入还是波浪线.怎么回事? 连词成句：friends to hello my you say should (.) Parents and kids today dress alike,listen to the same music,and are friends.Is this a good thing?Sometimes,when Mr.Ballmer and his 16-year-old daughter,Elizabeth,listen to rock music together and talk about interests both enjoy,such as pop culture,he tourist a his with to the pianning place friend is 连词成句 I fell luck To gave met you are a friend,friend my love my life. 一条路全长300米,蚂蚁第一天爬了全程的5/2,第二天爬了剩下的9/4,这时离大树还有多少米?（用两种方法解答） 请帮忙翻译下面的句子 谢谢了 看不懂Thank you for comforting me when I'm sadLoving me when I'm madPicking me up when I'm downThank you for being my friend and being 就这个 谢谢 英语翻译That fatal flaw has come about through the one defect no one watching his ascent to the White House,punctuated as it was with so many exercises in eloquence,could have predicted:a failure to connect with the American people.特别是the o 请问这个句子应该怎么翻译呢~看不懂的说 > 帮我翻译下这个句子.看不懂.That was before we entered the permissive period in education in which we decided it was all right not to push our children to achieve their best in school. 英语翻译1.He stretched out his arm and said,“Grandpa,let me take you across.”2.His fingers were strained from cigarettes and he chewed the inside of his lips a lot.3.It good to smell the scent of ripening rice in November. 谁能翻译“Listen,my heart,to the whispers of world with which it makes love to you. Listen.My heart to the whtspers of the world with which it makes love to 泰戈尔的这句诗的中文翻译：Listen,my heart,to the wispers of the world,it makes love to you. 一只蚂蚁从远处爬回大树下的巢穴,第一小时爬了全程的五分之二,第二小时爬了全程的九分之四,那么它还要一只蚂蚁从远处爬回大树下的巢穴，第一小时爬了全程的五分之二，第二小时爬了 一首欢快的英文歌,女声唱的.开头是一段男女的电话录音,歌词里好像有：listen to my love刚在百度注册的,所以分不是很多,倾尽所有了.这里拜托大家了! 已知函数f（x）=Asin（wx+φ）)(A>0,w>0,|x| 全部做,12题是a的2014次方+b的2015次方的值为多少.13题是3的30次方个位数是多少. 已知函数y=Asin(Wx+φ)(A>0,w>0,-π/2 已知二次函数y=-x^2-8x+3,当-7≤x≤-3时,若x= ,函数有最大值 ,若x= ,函数有最小值 3的2014次方的个位数是几?十分钟之内最好