求limb1n1

f(x)=2x/x+2 f(x)+f(m-x)=4 x大于-2恒成立,求M any one和anyone的区别 三角形ABC中ad是角bac的平分线,角ABC=2角A如题 如何测试废旧干电池电压?有什么方法? 在三角形abc中,若AD是角BAC平分线点E和点D分别在AB 知之为知之后一句 雪在风中飞舞扩句 Are you goingto buy those green gloves or those yellow __?选项 a.one b.ones c.one another d.others 天地间飞舞着雪花,晶莹而美丽这个句子怎么修改 一速度为36m/s的火车制动后做成匀减速直线运动经过10s停止运动如果火车的质量为3000000kg求制动力是多大 假设运动过程中阻力恒为500N,汽车质量为1500kg,减速时加速度为1.5m/s,刹车时汽车制动力怎么算? 用公式用公式F=ma 中的F减去阻力 还是加上? 力随速度变时时间到我问题（一个积分问题）比如一个最简单的例子吧,雨滴下落的时候假设只考虑重力和空气阻力,空气阻力f=kv 若雨滴从形成开始到匀速下落,我们都知道根据力的平衡可以 I go to bed at 8 p.m.in the morning这句话意思 十二生肖什么动物是为国为民的 在什么的基础上采取什么的方法可以得出：如果运动物体不受力；它将做什么,初中物理采取此方法的探究实验还有： 弹簧测力计的读数直接读出来是不是作用在弹簧挂钩那边的力,还是拉环那边的? i thought you might have got drunk yesi thought you might have got drunk yes,i_ A almost did B almost had 当压力增大,岩石孔隙度增大吗?为什么?根据这个公式算就是这样，但谁能详细讲下原因，举现实的例子。 孔隙度在25%以 下25%-40% 40%-50%的岩石有哪些 在排版当中使用了分隔符,把文章的每一页都分开了,现在不想用了怎去它?,本人在排版时要用到分隔符,结果又不想要了,而且又没有备份,该怎去这个分隔符啊? 趴在地上行走的动物, 测岩心孔隙度的实验为什么用氦气 英语翻译“Everyone should consider his body as a priceless gift from one whom he loves above all,a marvelous work of art,of indescribable beauty,and mystery beyond human conception,and so delicate that a word,a breath,a look,nay,a thought may in 对于任意实数x,点P(x,-2x^2+6x)一定不在第一象限第二象限第三象限第四象限应该选哪个 对任意实数x,点P(x,x²-2x)关于原点的对称点一定不在第几象限? 英语翻译So astounding are the facts in this connection,that it would seem as though the Creator,himself had electrically designed this planet.. 英语翻译The gift of mental power comes from God,Divine Being,and if we concentrate our minds on that truth,we become in tune with this great power.My Mother had taught me to seek all truth in the Bible.” 英语翻译The opinion of the world does not affect me.I have placed as the real values in my life what follows when I am dead. 英语翻译When wireless is perfectly applied the whole earth will be converted into a huge brain,which in fact it is,all things being particles of a real and rhythmic whole.We shall be able to communicate with one another instantly,irrespective of 英语翻译The mind is sharper and keener in seclusion and uninterrupted solitude.No big laboratory is needed in which to think.Originality thrives in seclusion free of outside influences beating upon us to cripple the creative mind.Be alone,that is 英语翻译Our senses enable us to perceive only a minute portion of the outside world. 1.点｛-2,1/a｝在第二象限得角平分线上,则a= 2.对任意实数x,点P(x,x²,-2x)一定不在第___象限