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
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
B
举一反三
- 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
- 17e0b849b7d64bd.jpg,计算[img=19x34]17e0ab14a855463.jpg[/img]实验命令为(). A: syms x;f=diff(asinsqrt(x))f=1/2/x^(1/2)/(1-x)^(1/2) B: f=diff(asin(sqrt(x)))f=1/2/x^(1/2)/(1-x)^(1/2) C: syms x;diff(asin(sqrt(x)))f=1/2/x^(1/2)/(1-x)^(1/2)
- 17da42840675a6d.jpg,计算[img=19x34]17da4275482315f.jpg[/img]实验命令为(). A: syms x;f=diff(asinsqrt(x))f=1/2/x^(1/2)/(1-x)^(1/2) B: f=diff(asin(sqrt(x)))f=1/2/x^(1/2)/(1-x)^(1/2) C: syms x;diff(asin(sqrt(x)))f=1/2/x^(1/2)/(1-x)^(1/2)
- 设(),求y的4阶导数错误的命令是()A.()syms()f(x)()f(x)=exp(x)*cos(x)()diff(f,4)()B.()syms()f(x)()f(x)=exp(x)*cos(x)()diff(f,x,4)()C.()syms()f(x)()f(x)=exp(x)*cos(x)()diff(f,4,x)()D.()syms()f(x)()f(x)=exp(x)*cos(x)()diff(f,x)
- 17e0b849d3a4a3b.jpg,计算[img=19x34]17e0ab14a855463.jpg[/img]的实验命令为（ ）. A: syms x; f=diff((1+sin(x)^2)/cos(x),1)f=2*sin(x) + (sin(x)*(sin(x)^2 + 1))/cos(x)^2 B: f=diff((1+sinx^2)/cosx,1)f=1/2/x^(1/2)/(1-x)^(1/2) C: syms x;f=diff((1+sinx^2)/cosx,1)f=2*sin(x) + (sin(x)*(sin(x)^2 + 1))/cos(x)^2
内容
- 0
要求f(x)的二阶导数，应使用命令： A: diff(f(x),xx) B: diff(f(x),'x','x') C: diff(f(x),2) D: diff(f(x),'x',2)
- 1
根据方程F(x,y,z)=0求[img=20x44]1802e4e0282af80.png[/img]，应使用命令 A: -diff(F,x)/diff(F,y) B: diff(F,x)/diff(F,y) C: -diff(F,y)/diff(F,x) D: diff(F,y)/diff(F,x)
- 2
下面的命令表示( ) syms a x y f=sin(a*x)+y^2*cos(x); dfdx=diff(f);
- 3
MATLAB命令中函数f(x)的三阶导数命令为diff(f(x),x,3)（ ）。
- 4
实验命令“syms x y; f=x^3+y^3-3*x*y; fx=diff(f,'x'); fy=diff(f,'y'); [x0 y0]=solve(fx,fy)” 的结果是【】.