若实数a,b满足a/|a|+b/|b|=0,则a/|a|×b/|b|=?
1个回答
答:
实数a和b满足:
a/|a|+b/|b|=0
a/|a|=-b/|b|
|a|/|b|=-b/a
|a/b|=-b/a>0
所以:
b/a
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