求不定积分[img=112x35]17da6538063a9e4.png[/img]； （ ） A: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/ B: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))/8 C: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4)) D: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/8

数学式 A: (e^(2*x)*Log(x)+x^2)/Sqr(Abs(Sinx^2-Cos2x)) B: (Exp(2*x)*Log(x)+x^2)/Sqr(Abs(Sin(x^2)-Cos(x)^2)) C: (Exp(2*x)*Ln(x)+x^2)/Sqr(Abs(Sin(x^2)-Cos(x)^2)) D: (e^(2*x)*Log(x)+x^2)/Sqr(Abs(Sin(x)^2-Cos(x)^2))

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)

求不定积分[img=121x54]17da653839aa6ae.png[/img]； （ ） A: log(x^2 + 3*x + 25/4)/4 + (5*atan(x/2 + 3/4))/4 B: log(x^2 + 3*x + 25/4)/4 C: (5*atan(x/2 + 3/4))/4 D: log(x^2 + 3*x + 25/4)/4 - (5*atan(x/2 + 3/4))/4

实验命令“ syms x y; z=2*exp(x*y)+log(x+y)； zx=diff(z,'x')”的结果是【】. A: 2*exp(x*y)+log(x+y); B: 2* y*exp(x*y)+1/(x+y); C: 2*x*exp(x*y)+1/(x+y); D: 无结果.

用赋值语句给定 x 数据，计算 [img=173x40]18034d605abf37a.png[/img]对应的 MATLAB 表达式是 A: sqrt(7*sin(3+2*x)+exp(2)*log(3)) B: sqrt(7sin(3+2x)+exp(2)log(3)) C: sqr(7*sin(3+2*x)+e^2*log(3)) D: sqr(7sin(3+2x)+ e^2 log(3))

用赋值语句给定x的数据，计算[img=520x100]17da65a77d01074.png[/img]对应的matlab语句是（ ）. A: sqrt(6*tan(3+2*x)+exp(2)*log(3)) B: sqrt(6tan(3+2x)+exp(2)log(3)) C: sqr(6*tan(3+2*x)+exp(2)*log(3)) D: sqr(6tan(3+2x)+exp(2)log(3))

17da426f4cb2265.jpg,计算[img=23x22]17da426f58ddf0c.jpg[/img]实验命令为( ). A: f=diff(log(x),3)f=2/x^3 B: syms x; f=diff(log(x),3)f=2/x^3 C: syms x;f=diff(logx,3)f=2/x^3

17e0a756f3d6e2a.jpg,计算[img=23x22]17e0b849ab0b36c.jpg[/img]实验命令为( ). A: f=diff(log(x),3)f=2/x^3 B: syms x; f=diff(log(x),3)f=2/x^3 C: syms x;f=diff(logx,3)f=2/x^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)