- 首页
- 教师继续教育
-
1.=e,u=-x 2v,v=sinx.( )
-
2.导数的四则运算:(uv)'u'v';;(uv)'u'vv'u;(________)'u'v2v'uv vhttps://bgk-photo.cdn.bcebos.com/d058ccbf6c81800ad852666ea13533fa828b471f.jpg
-
3.(8-4-6)设 y x z = ,而 v u x + = , v u
-
4.若边e=[u,v]∈E,称u、v是e的端点,也称u、v是关联的。
-
5.若u(x),v(x)在[a,b]上具有连续导数,则u(xd(x)= u(x )v(xv(x)du(x
-
6.T h e m e d i a n n e r v e a r i s e f r o m t h e ( )A . c e r v i c a l p l e x u s B . b r a c h
-
7.设随机变量X与Y相互独立,且E(X)与E(Y )存在,记U = max(X, Y), V = min(X, Y ),则 E(UV ) =( ).
-
8..对于化学反应3W(g) 2X(g)=== 4Y(g) 3Z(g),下列反应速率关系中,正确的是( )A、. v(W) = 3v(Z)B、. 2v(X) = 3v(Z)C、. 2v(X)
-
9.【判断题】设 , x=u v , y=u-v ,则 。 ()
-
10.﹣(u﹣v)=﹣u v( )