函数(x)=3(x)^5-5(x)^4的凸区间为(x)=3(x)^5-5(x)^4，凹区间为(x)=3(x)^5-5(x)^4，拐点为(x)=3(x)^5-5(x)^4.

10.求下列函数图形的拐点及凹或凸的区间:-|||-(2) =x(e)^-x ;-|||-(1) =(x)^3-5(x)^2+3x+5 ;-|||-(4) =l

解方程_(2)-3(x)_(3)+4(x)_(4)=-5-|||-x1- 2x3+324 =-4-|||-(x)_(1)+2(x)_(2)-5(x)_(4)=1

求下列函数图形的拐点及凹或凸的区间: (1).y=x3-5x2+3x+5 ; (2) y=xe­-x ; (3)

用消元法解下列线性方程组:-|||- x1+3x2+5x3-4x4 =1, x1+3x2+2x3-2x4+x5=-1, x1-2x2+x3-x4-x5=3, x

【题目】9.求下列函数图形的拐点及凹或凸的区间:(1) y=x^3-5x^2+3x+5 ;(2) y=xe^-x ;(3) y=(x+1)^4+e^x(4) y

2.解方程组 ) (x)_(1)+(x)_(2)+(x)_(3) (x)_(1)+(x)_(2)-(x)_(3)-(x)_(4)=1 5(x)_(1)+5(

10.求下列函数图形的拐点及凹或凸的区间:-|||-(1) =(x)^3-5(x)^2+3x+5 ;

函数y=4x^5-2x^4+6x^3-x^2+5x-1的五阶导数是4×5！A. 对B. 错

解线性方程组: (x)_(1)+(x)_(2)-5(x)_(3)+(x)_(4)=8 (x)_(1)+(x)_(2)-5(x)_(3)+(x

y=x^3-5x^2+3x+5的拐点$$y=x^3-5x^2+3x+5$$的拐点