若a=3∠,b=6∠,则ab=________,ab=_______(用复数的极坐标表达式)/ananas/latex/p/68789/ananas/latex/p/1898/ananas/latex/p/142/ananas/latex/p/4106
若a=3∠,b=6∠,则ab=________,ab=_______(用复数的极坐标表达式)/ananas/latex/p/68789/ananas/latex/p/1898/ananas/latex/p/142/ananas/latex/p/4106
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
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
求下列函数的定义域: (1) 10分 (2) 10分 (3) 10分/ananas/latex/p/1196018/ananas/latex/p/1196038/ananas/latex/p/1196041
求下列函数的定义域: (1) 10分 (2) 10分 (3) 10分/ananas/latex/p/1196018/ananas/latex/p/1196038/ananas/latex/p/1196041
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
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
求不定积分 A B C D/ananas/latex/p/2345131/ananas/latex/p/2345151/ananas/latex/p/2345158/ananas/latex/p/2345165/ananas/latex/p/2345170
求不定积分 A B C D/ananas/latex/p/2345131/ananas/latex/p/2345151/ananas/latex/p/2345158/ananas/latex/p/2345165/ananas/latex/p/2345170
/ananas/latex/p/515893/ananas/latex/p/515894/ananas/latex/p/503271/ananas/latex/p/515901/ananas/latex/p/515902/ananas/latex/p/515907/ananas/latex/p/515908
/ananas/latex/p/515893/ananas/latex/p/515894/ananas/latex/p/503271/ananas/latex/p/515901/ananas/latex/p/515902/ananas/latex/p/515907/ananas/latex/p/515908
微分方程的通解是 A() B() C() D()/ananas/latex/p/246339/ananas/latex/p/1383985/ananas/latex/p/1384011/ananas/latex/p/1384021/ananas/latex/p/1383997
微分方程的通解是 A() B() C() D()/ananas/latex/p/246339/ananas/latex/p/1383985/ananas/latex/p/1384011/ananas/latex/p/1384021/ananas/latex/p/1383997
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
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
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
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
微分方程 的通解为A. B . C. D ./ananas/latex/p/19860/ananas/latex/p/7563/ananas/latex/p/266655/ananas/latex/p/19864/ananas/latex/p/266659
微分方程 的通解为A. B . C. D ./ananas/latex/p/19860/ananas/latex/p/7563/ananas/latex/p/266655/ananas/latex/p/19864/ananas/latex/p/266659