help~2 条 F.2 maths question~****计算要有步骤*****

help~2 条 F.2 maths question~****计算要有步骤***** maths question!help me!已知函数f(x)=lg(2+x)+lg(2-x) ,若不等式f（x）>m有解,求实数m的取值范围. Maths Problem,Help Me!1.已知f(x)是偶函数,其定义域为R,且在[0,+oo)上为减函数,则f(-3/4)与f(a*a-a+1)的大小为?2.f(x)=x^5+ax^3+bx-8,f(-2)=10,f(2)=?第二题！ help me with my Maths help Mike with his maths. _you are free today,I hope you can help me with my maths.1Since2For答案是1我选2 为什么?p62 Please help me with this maths p______ need help with your maths的意思 help me with my Maths译成汉语 In the home a dad is very important.He is the person who provides us w 1 money and clothes .He can make your bedroom more beautiful,mend your radio,make c 2 for your birds,r 3 your bicycle and help you with your maths homework.A dad can be very u 4 f 求三角函数方程的解有以下两条等式,用mg,Q表示F,用Q表示a；Fcos(Q-a)=4mgsinQcosQ;F/sin(2Q)=mg/cos(a+Q);求具体的推导过程；本人初三刚毕业,对三角函数略懂略懂；做题有需求, 高一的数学函数题目HELP!1函数f（x）满足f（x）-2f（-x）=2x-1,则f（x）=?2若函数f（x）的定义域为{x|2《x《4},则f（2x）的定义域为?3已知函数f（x）满足f（ab）=f（a）=f（b）且f（2）=p,f（3）=q,则f f(x)=根号2sin(wx+q)的图像的相邻两条对称轴的距离是π,则w的值 Help!(2) maths 库仑研究F与q1q2的乘积成正比时为什么把q分为q/2,q/4.q/8, 1、那位老师对全班的学生进行了数学测试.The teacher ______ the whole class ________ maths.2、我们很感激他的帮助.We ______ ______ ______ his help. 动词填空1 —_____Betty_____(help）me with my maths tomorrow?2----Look!How happy ypur mother______(look)3 Need I ______ (finish) this work today?4 Look .The dog with its owner _________(walk)along the street.