A.E^*Sin(30*3.14/180)*2*X/X+Y*Log(X)
B.Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X)
C.Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*Log(x)
D.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
[单选题](15)已知代数式eXSin(30°)2x/(x+y)Lnx,则正确的Visual Basin表达式为 A.Eˆ*Sin(30*3.14/180)*2*X/X+Y*Log(X) B.Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) C.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Log(X) D.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
[单选题](15)已知代数式eXSin(30°)2x/(x+y)Lnx,则正确的Visual Basin表达式为 。A.Eˆ*Sin(30*3.14/180)*2*X/X+Y*Log(X)B.Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) C.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Log(X)D.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
[单选题]代数式eXSin(30°)2x/(x+y)Inx对应的Visual Basic表达式是( )。A.E^*Sin(30*3.14/180)*2*X/X+Y*Log(X)B.Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X)C.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Log(X)D.Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
[单选题]代数式exSin(300)2x/(x+y)lnx对应的VB表达式是()A . E^X*Sin(30*3.14/180)*2*x/x+y*log(x)B . Exp(x)*Sin(30)*2*x/(x+y)*ln(x)C . Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*log(x)D . Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*ln(x)
[试题]求代数式的值:(1)6x+2x²-3x+x²+1,其中x=-5 ;(2)4x²+3xy-x²-9,其中x=2,y= -3 ;(3)3pq-4m/5-4pq,其中m=-5,p=-1/4,q=-3/2
[主观题]设函数f(2x)=lnx,则f′(x)=________.
[主观题]若代数式3x+7的值为-2,则x=___________.
[试题]举例说明下列各代数式的意义:(1)2x 可以解释为__;(2)(a+b)/2可以解释为____;(3)8a3可以解释为____。
[单选题]若x,y,z均被定义为整数,则下列表达式终能正确表达代数式1/(x*y*z)的是()A.1/x*y*zB.1.0/(x*y*z)C.1/(x*y*z)D.1/x/y/(floAt)z
[单选题]代数式,|e2×A+lgy13+sin y2|对应的Visual Basic表达式是 ______。A.Abs(e^2*a+Log(y1^3)+Sin(y2))B.Abs(Exp(2)*a+Log(y1^3)/Log(10)+Sin(y2))C.Abs(e^2*a+lg(y1^3)+Sin(y2))D.Abs(Exp(2)*a+Log(y1^3)+Sin(y2))