1.
1)as we know x:y
we can get x/(x+y)
2)as we know P(notA)
we can get P(A)
2.A
1)=> x as X is smaller than itself when it times the absolute value of itself !x! must be >1
2)=> !x!>x whenever x<0 but we can not say if it's <-1 or not
eg x=-2 or x=-1/2
3. A
1)as it is the compound interest the interest gain growing as the time going
therefore in the second period , the interest is more than that in the first
2)we don't know the interest rate or how much it is more than 100 in the third period , therefore , whether we get more than 100 for the 2nd period is hard to say
^^作者: isenetlab12 时间: 2003-1-9 14:27
x<>0.问|X|>1吗?
1.X/|X|X
the answer should be C
for 1, if X<0, then -10, then 11
for 2, we know X<0
then the anser is C
Correct?作者: onlyangel 时间: 2003-1-9 15:02
