A: limit(log(x^2-3)/(x^2-3*x+2),2)ans =4
B: syms x; limit(log(x^2-3)/(x^2-3*x+2),2)ans =4
C: syms x; limit(logx^2-3/(x^2-3*x+2),x,2)ans =4
举一反三
- 计算[img=92x41]17da61001961fe7.png[/img]实验命令为(). A: limit(x*log(1+2/x),inf)ans =2 B: syms x; limit(x*log(1+2/x),inf)ans =2 C: syms x; limit(x*log1+2/x,inf)ans =4
- 计算 [img=61x41]17da60e4003aded.png[/img]实验命令为(). A: syms x; limit(tan(x)/(2*x))ans =1/2 B: syms x; limit(tanx/(2*x))ans =1/2 C: limit(tanx/(2*x),x,0)ans =1/2
- 17da555a3275fb2.png,计算极限的实验命令为(). A: limit((x-sin(x))/x^3,x,0)ans =1/2 B: syms x; limit((x-sin(x))/(x.^3),x,0)ans =1/6 C: syms x; limit(x-sinx)/x^3,x,0)ans =1/6
- 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
内容
- 0
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
- 1
$(-x-1)(x^{4}+2x^{3}-x^{2}-4x-2)+(x+2)(x^{4}+x^{3}-x^{2}-2x-2)$的结果是（ ）。 A: $x^{2}-2$; B: $x^{3}-x^{2}-1$; C: $2x^{3}-4x-2$; D: $x^{4}+3x-2.$
- 2
17da52a3e27ca7e.png,计算极限的实验命令为(). A: syms a x; limit((a^x-1)/x)ans =log(a) B: limit((a^x-1)/x)ans=a C: syms x; limit((a^x-1)/x)ans =log(a)
- 3
计算[img=88x44]17da60f638f2d11.png[/img]实验命令为(). A: limit((x^2+log(x))/(x*log(x)),+inf)ans =Inf B: syms x; limit((x^2+logx)/(x*log(x)),x,+inf)ans =NaN C: syms x; limit((x^2+log(x))/(x*log(x)),x,+inf)ans =Inf
- 4
在Matlab中求[img=123x44]18030b2956167b1.png[/img]极限的命令是（ ） A: syms x; limit(‘(tanx-sinx)/sin2x^3’,x,0) B: syms x; limit(‘(tanx-sinx)/(sin2x)^3’,x,0) C: syms x; limit(‘(tan(x)-sin(x))/(sin(2*x))^3’,x,0) D: syms x; limit(‘(tan(x)-sin(x))/(sin2x)^3’,x,0)