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求100道小学数学简便运算题要答案的 假如物体没有了惯性会怎样?为什么?要写原因..举3个例子.. 2-(1-y）=-2 用一元一次方程解 已知5x^2-4xy+y^2-2x+1=0,求(x-y)^2007 已知5x^2-4xy+y^2-2x+1=0,(x-y)^2006=? y减y减1除以3等于2减y加2除以5一 正比例函数y=kx与反比例函数y=x分之k的图象相交于A,B两点,已知A的横坐标为1,点B的纵坐标为-31.求AB两点坐标2.写出这两个函数的表达式越详细越好,不好意思,最近没分,所以见谅 圆x∧2+y∧2=4上与直线4x+3y-12=0距离最小的点的坐标是? ln(1+2^x)*ln(1+3/x),求x趋向于正无穷的极限,急 [(x+2)ln(x+2)-2(x+1)ln(x+1)+xln(x)]*x x趋向于正无穷,求它的极限.怎么解,答案是1 3x+（x-1）+2x=2 3x（1-x）=2x-2 (x-2)/ln|1-x|当x趋向于2时的极限 是he likes sport 还是he likes sports 4√3X＝－√80 He_sports,A,like .B,likes,C,do选什么. What sports do you like?I like ＿＿,but he likes＿＿.A.swimming,playing soccer.B.swimming,to play soccer C.swim,play soccer. y=(x+1)*ln(x+1)/x,当x无限趋向于0时,y的极限是多少?答案是1，我想要推导过程 求当x趋向于无穷时,y=ln(1+x/1-x)的极限 函数f（x）=3x-x平方为递增函数的区间是 1/4的倒数是4,它们的差是()?高手来答会的来，要百分百对，你们别老看不回答啊 一个数增加它的5分之1后是36,这个数的倒数是（）. She has an art lesson on Friday变一般疑问句------- --------- --------- anart lesson on Friday?(⊙o⊙)… We have （ ） Art Lesson every Monday.请问冠词是用The还是an? 数学极限ln(x+1)~x证明方法 62.2－（62.2－40）简便运算 2.2*62+62+3.2怎样简便计算? I like music_____my brother likes sports……单选(有解释的)I like music_____my brother likes sports.Really?________A.when;so do I B.while;I like sports,tooC.as;so I do D.but;I like also music i----sports .but my brother----. A.like/likes B.don't/likes C.like/doesn't My brother ___ sport.a.is b.like c.likes my brother likes sports like basketballand so on .第二个like的意思是什么?是像,比如还是喜欢?第二 I like instruments.I am good at playing ____ violin.My brother likes sports.