y=xsin2x+log3(X),求微分dy
dy=sin2x+2xcos2x+1/(xln3)
举一反三
- 函数y=x^3在x=-1处,△x=0.02时增量△y=（）,微分dy=()
- 求函数y=1/x+2√x的微分dy
- 求函数的导数dy/dx,和微分dy:y=x√1-x
- 用R程序编程求下列的值，正确的命令是 （ ）[img=273x30]180398c76b70239.png[/img] A: x<-log(2);y<-log(3);100^(2*x-y) B: x<-log10(2);y<-log10(3);100^(2*x-y) C: x<-log10(2);y<-log10(3);100^(2x-y) D: x<-log(2);y<-log(3);100^(2x-y)
- 由方程x^y-2x+y=0确定了隐函数y=y(x),求微分dy
内容
- 0
设y=x^(x)(x>0)则函数y的微分dy=?
- 1
已知函数y=x²-1÷x其微分dy=?
- 2
已知y=ln(1+x^2),在x=1处的微分dy=
- 3
<img src="http://edu-image.nosdn.127.net/E6A0628104FCB0F521FBF2AAAC7F1968.png?imageView&thumbnail=890x0&quality=100" style="width: 558px; height: 33px;" />? syms xy=log(1/x*x+exp(x))+sin(1-x^2)dy/dx=diff(y,x)|syms xy=log(1/x/x+exp(x))+sin(1-x^2)dydx=diff(y,x)|syms xy=log(1/x/x+exp(x))+sin(1-x)^2dydx=diff(y,x)|syms xy=log(1/x/x+exp^x)+sin(1-x^2)dydx=diff(y,x)
- 4
求不定积分[img=115x46]17da65382f8e1b9.png[/img]； （ ） A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4