Mathematics
Senior High
99番の問題の解き方を教えてください🙇🏻♀️՞
□ 99 2 つの2次方程式 x2+2ax+α+2=0, x2-4x+a+3=0 が次の条件を満
たすとき, 定数αの値の範囲を求めよ。
(1) 少なくとも一方が虚数解をもつ。
(2) どちらか一方だけが虚数解をもつ。
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