一道SAT2数学题答好了我加分 if f(x)=x³-4x²-3x+2 which of the following are true?1.the function f is increasing for x≥32.the equation f(x)=o has two nonreal solutions3.f(x)≥-16 for all x≥0答案是1和3,为什么2不对?1,3

一道SAT2数学题答好了我加分 if f(x)=x³-4x²-3x+2 which of the following are true?1.the function f is increasing for x≥32.the equation f(x)=o has two nonreal solutions3.f(x)≥-16 for all x≥0答案是1和3,为什么2不对?1,3 一道sat2数学题| | ←这个像绝对值符号的东西是什么意思!要做何种运算?题如下!if ax+by=edx+ey=fare solved stimultaneously,and x=5,y=2and |a b||d e| = 2↑(我就是不知道这里面要咋算!)what does |c b||f e| equal!绝 SAT2数学题一道,if a square prism is inscribed in a right circular cylinder of radius 3 and height 6,the volume inside the cylinder but outside the prism is,我知道答案是61.6,请发下详细解答过程 又一道急需解决的SAT2 Math If f(x)=X^2-3x+4,which of the following is an approximation of f(f(f(3+7/8)))?正答：1223.21 sat2 数学：if o 请教一道sat2数学题首先想问一下,sat2数学都是单选还是多选这道题我算出来两个答案,A和B,假如是单选的话,不知道有一个为什么错了, 求问Sat2数学题 If f is a linear function and f(-2)=11,f(5)=-2,and f(x)=4.3,what is the value of x sat2数学题,f(x)=5√2x ,what is the value off^(-1) (10)?If f(x)=5√2x ,what is the value of f^(-1) (10)? 一道SAT2数学题If all the terms of a geometric series are possible,the first term of the series is 2,and the third term id 8,how many digits are there in the 40th term?A 10B 11C 12 D 14E 15呃 答案我写错了 不好意思啊A 10 B 11 C 12 D 13 Sat2 一道物理题 一道英文(sat2)物理题 答好了有附加分 SAT2数学题 达人快进 本文科生已然晕倒 你要知道是在给纯种文科生说题 1.If f(x)=j,where j is an integer such that j 帮帮我有一道数学题不会拜托了T.T答对有加分 一道初二数学题,不难,但很急!答得好立刻采纳加分,我要详细解答.已知,四边形ABCD是正方形,点F是边AB,BC上一动点,DE⊥DF,且DE＝DF.连接EF.M为EF中点.连接CM.(1)当点F在边AB上时,①求证:点E在直线BC上 一道数学题21 二请按格式回答,答得好会加分~~ 谁来帮我一道数学题? 快答好了有加分的