举一反三
- 设集合,下列说法中确切的数量有个 (1); (2); (3); (4);/ananas/latex/p/1802644/ananas/latex/p/954674/ananas/latex/p/954669/ananas/latex/p/954660/ananas/latex/p/954656
- 函数的周期为/ananas/latex/p/232291/ananas/latex/p/1668
- 设,在内,则在内( )/ananas/latex/p/243901/ananas/latex/p/22409/ananas/latex/p/243903/ananas/latex/p/2154/ananas/latex/p/22992
- 设平面区域D由围成,记,则的关系为/ananas/latex/p/588784/ananas/latex/p/1514487/ananas/latex/p/16447
- 设X~N(μ,4),Y~N(μ,9),a=P{Xμ-2},b=P{Yμ+3},则/ananas/latex/p/1237/ananas/latex/p/990
内容
- 0
设Ω{1,2,…,10},{2,3,4},{3,4,5},则/ananas/latex/p/1591/ananas/latex/p/37739/ananas/latex/p/37740/ananas/latex/p/502945
- 1
已知()=0.4,则()=( )/ananas/latex/p/152/ananas/latex/p/278/ananas/latex/p/847/ananas/latex/p/281/ananas/latex/p/152/ananas/latex/p/4781/ananas/latex/p/7419/ananas/latex/p/6547
- 2
设在上二阶可导,且,则在内是( )/ananas/latex/p/2154/ananas/latex/p/13269/ananas/latex/p/243898/ananas/latex/p/243899/ananas/latex/p/95388
- 3
设可微,且,则/ananas/latex/p/2154/ananas/latex/p/902448/ananas/latex/p/54324
- 4
A:平面,B:球面,C:旋转椭球面,D:椭球面,E:圆柱面,F:抛物柱面,G:椭圆柱面,H:旋转抛物面,I:圆锥面,J:椭圆锥面,K:马鞍面。则: (1)是____; (2)是______; (3)是______; (4)是______; (5)是______; (6)是______; (7)是______; (8)是______; (9)是______; (10)是______; (11)是______; (12)是______; (13)是______;/ananas/latex/p/1045101/ananas/latex/p/28097/ananas/latex/p/958152/ananas/latex/p/39419/ananas/latex/p/973515/ananas/latex/p/47030/ananas/latex/p/645788/ananas/latex/p/36944/ananas/latex/p/34552/ananas/latex/p/422334/ananas/latex/p/1045357/ananas/latex/p/36098/ananas/latex/p/596597