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|x+y|+|x﹣y|>2 x2+y2<1 x+y<1 xy+1>x+y
a-b>0 -a+b<0 ab<0 |a|>|b|
P.(X.=1.5)=0 P.(X.>-1)=1 P.(X.<3)=1 P.(X.<0)=0
f(1)<f(﹣3) f(3)>f(2) f(﹣2)>f(3) f(2)>f(0)
ma>mb a2>b2 1-a>1-b b-a<0
﹣(﹣a)<0 a2=(﹣a)2 (﹣a)3>0 a3=(﹣a)3
P(X>=P(X≥=1-Φ( P(a≤X≤=Φ(-Φ( P( X ≤=2Φ(-1 Φ(-=-Φ( P(x<=P(x≥=1-Φ(
a2>0 -a2<0 -(-a)>0 a2+1>0
P(X>=P(X≥=1-Ф( P(a≤X≤=Ф(-Ф( P(|X|≤=2Ф(-1 Ф(-=-Ф( P(X<=P(X≥=1-Ф(
, ,与y轴交于点 ,∠OBC=45°,则下列各式成立的是( ) A.b-c-1=0B.b+c+1=0C.b-c+1=0 b+c-1=0
ma>mb a2>b2 1﹣a>1﹣b b﹣a<0
P(X>=p(X≥=1-Ф( P(a≤X≤=Ф(-Ф( P(X=0)=0 P(-a<X<=Ф(-1 P(X==1
f(﹣1)<f(3) f(0)<f(5) f(3)>f(2) f(2)>f(0)
B两点,与y轴交于点C,∠ABC=45°,则下列各式成立的是( )
A.b-c+1=0 b+c-1=0 b+c+1=0 b-c-1=0