若不等式IX-4I IX-3I
若不等式IX-4I IX-3I
數(shù)學(xué)人氣：819 ℃時(shí)間：2020-03-19 08:54:33
優(yōu)質(zhì)解答
|x-4|+|x-3| >= |x-3+4-x = 1 所以 要使解集不是空集,則必須 a>1 否則就無解了 所以 a>1
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