与数学式子对应的C语言表达式是A.3*xn(2*x-1)B.3*x**n(2*x-1)C.3*pow(x,n)*(1/(2*x-1))D.3*pow(n,x)/(2*x-1)

与数学式子对应的C语言表达式是

A.3*xn(2*x-1)

B.3*x**n(2*x-1)

C.3*pow(x,n)*(1/(2*x-1))

D.3*pow(n,x)/(2*x-1)


相关考题:

曲线y=x^3+x-2在点(1,0)处的切线方程是() A、y=2(x-1)B、y=4(x-1)C、y=4x-1D、y=3(x-1)

能正确表示代数式的C语言表达式是( )A.3*xn/(2*x-1)B.3*x**n/(2*x-1)C.3*pow(x,n)*(1/(2*x-1))D.3*pow(n,x)/(2*x-1)

与数学式子应的C语言表达式是A.3*xn/(2*x-1)B.3*x**n/(2*x-1)C.3*pow(x,n)*(1/(2*x-1))D.3*pow(n,x)/(2*x-1)

与数学式子对应的C语言表达式是A.3*x^n/(2*x-1)B.3*x**n/(2*x-1)C.3*pow(x,n)*(1/(2*x-1) )D.3*pow(n,x)/(2*x-1)

将x3+6x-7因式分解为( )A.(x-1)(x2+x+7)B.(x+1)(x2+x+7)C.(x-1)(x2+x-7)D.(x-1)(x2-x+7)E.(x-1)(x2-x-7)

2、求f(x)=x sin(2x-1)在0附近的最小值,相应的命令是()。A.[x,fval] = fminbnd(@(x) x*sin(2*x-1),0,0.5)B.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0)C.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0.5)D.[x,fval] = fminunc(@(x) x*sin(2*x-1),0)

求f(x)=x sin(2x-1)在0附近的最小值,相应的命令是()。A.[x,fval] = fminbnd(@(x) x*sin(2*x-1),0,0.5)B.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0)C.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0.5)D.[x,fval] = fminunc(@(x) x*sin(2*x-1),0)

求f(x)=x sin(2x-1)在0附近的最小值,相应的命令是()。A.[x,fval]=fminbnd(@(x) x*sin(2*x-1),0,0.5)B.[x,fval]=fminbnd(@(x) x*sin(2*x-1),0)C.[x,fval]=fminsearch(@(x) x*sin(2*x-1),[0,0.5])D.[x,fval]=fminunc(@(x) x*sin(2*x-1),[0,0.5])

设随机变量X~N(1,4),则以下结果正确的是A.D(X)=4E(X)B.P(X>-1)=Φ(1)C.0.5(X-1)~N(0,1)D.0.25(X-1)~N(0,1)E.2(X-1)~N(0,8)F.P(X<2)= Φ(1)G.D(X+1)=E(X+1)H.P(X<4)= Φ(1)