函数f(x)=(12)x与函数g(x)=log12x在(0,+∞)上的单调性为( )
函数f(x)=(12)x与函数g(x)=log12x在(0,+∞)上的单调性为( )
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
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
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
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
在f1(x)=x12,f2(x)=x2,f3(x)=2x,f4(x)=log12x四个函数中,x1>x2>1时,能使12[f(x1)+f(x2)]<f(x1+x22);成立的函数是( ) A: f1(x)=x12 B: f2(x)=x2 C: f3(x)=2x D: f4(x)=log12x
在f1(x)=x12,f2(x)=x2,f3(x)=2x,f4(x)=log12x四个函数中,x1>x2>1时,能使12[f(x1)+f(x2)]<f(x1+x22);成立的函数是( ) A: f1(x)=x12 B: f2(x)=x2 C: f3(x)=2x D: f4(x)=log12x
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
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
下列程序段的输出结果是 。 a=10: b=10000: x=log(b)/log(a): Print "lg(10000)=";x
下列程序段的输出结果是 。 a=10: b=10000: x=log(b)/log(a): Print "lg(10000)=";x
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)
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)
求下列各式的值(5×2=10分)(1) 已知lg2 = a,lg3 = b,求log 3 12 的值;(2)若 y = log (2a + 1) x 是对数函数,则a的取值范围是?
求下列各式的值(5×2=10分)(1) 已知lg2 = a,lg3 = b,求log 3 12 的值;(2)若 y = log (2a + 1) x 是对数函数,则a的取值范围是?
<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)
<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)
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))
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))