點(0,1)是曲線y=ax3+bx+c的拐點,則a、b、c的值分別為()
A.a=1,b=-3,c=-2
B.a≠0的實數(shù),b為任意實數(shù),c=1
C.a=1,b=0,c=2
D.a=0、b為任意實數(shù),c=1
您可能感興趣的試卷
你可能感興趣的試題
過點M0(-1,1)且與曲線2ex-2cosy-1=0上點(0,π/3)的切線相垂直的直線方程是:()
A.y-π/3=(/2)x
B.y-π/3=-(2/)x
C.y-1=(/2)(x+1)
D.y-1=-(2/)(x+1)
已知由方程siny+xey=0,確定y是x的函數(shù),則dy/dx的值是:()
A.-(ey+cosy)/xey
B.-ey/cosy
C.-ey/(cosy+xey)
D.-cosy/xey
設參數(shù)方程,確定了y是x的函數(shù),f″(t)存在且不為零,則d2y/d2x的值是:()
A.-1/f″(t)
B.1/[f″(t)]2
C.-1/[f″(t)]2
D.1/f″(t)
(x+ex)的值是:()
A.e
B.e
C.1
D.2
設參數(shù)方程,確定了y是x的函數(shù),且f′(t)存在,f(0)=2,f′(0)=2,則當t=0時,dy/dx的值等于:()
A.4/3
B.-4/3
C.-2
D.2
最新試題
曲面xyz=1上平行于x+y+z+3=0的切平面方程是:()
點x=0是函數(shù)y=x4的()
曲線x2=6y-y3在(-2,2)點切線的斜率為()
設D是矩形區(qū)域:0≤x≤π/4,-1≤y≤1,則xcos2xydxdy等于:()
收斂的數(shù)列必有界.
積分的值等于:()
設f(x)為連續(xù)函數(shù),則等于()
設D為圓形區(qū)域x2+y2≤1,=()
設函數(shù)f(x)=丨x丨,則函數(shù)在點x=0處()
下列定積分為零的是()