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={0,1,2,3}, ={2,3,4},则(∁uA.)∪(∁uB.)等于( ) A.{1}B.{0,1} {0,1,4} {0,1,2,3,4}
[0,1] [0,1) [0,1)∪(1,4] (0,1)
{0,1} {0,1,2} {3,4,5} {2,3,4,5}
(2,+∞) [0,1]∪[2,+∞) [0,1)∪(2,+∞) [0,1]∪(2,+∞)
N(0,1/2) N(0,4) N(0,1/4) 概率密度为 N(0,1/8)
(0,]∪[2,+∞) (0,]∪[3,+∞) (0,1]∪[2,+∞) (0,1]∪[3,+∞)
[0,1] [0,1) [0,1)∪(1,4] (0,1)
(﹣3,﹣2) (﹣2,﹣1) (﹣1,0) (0,1)
={0,1}的所有集合A.的个数是( ) A.1 2 3 4
z1=(1,2,3),z2=(2,3,1),z3=(4,8,2),z4=(5,8,7) z1=(1,2,3,4),z2=(2,1,2,5),z3=(0,0,0,0) z1=(1,2,3),z2=(2,4,6) z1=(1,0),z2=(0,1)
[0,1] [0,1]∪(1,4) [0,1] (0,1)
(-∞,-4]∪[2,+∞) (-4,0) ∪ (0,1) [-4,0) ∪ (0,1] [-4,0) ∪ (0,1)