ax^2+bx+c>0的解集是-10
(x-1/3)(x+1)>0
x1/3
問道不等式的題
問道不等式的題
ax^2+bx+c>0的解集是(-1,3),求cx^2+bx+a>0的解集
ax^2+bx+c>0的解集是(-1,3),求cx^2+bx+a>0的解集
數(shù)學人氣:552 ℃時間:2020-01-30 17:21:32
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