Mathematics
Senior High
教えてください
聖式の判別式を
してみよう。
-c のグラフ」
20
練習
41
次の連立不等式を解け。
x2-5x+4≦0
(1)
x2-2x-3>0
(2)
-2-1
2
x² + x>0
3x2+5x-2≦0
4
AX
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