Mathematics
Senior High
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写真の問題の解き方を教えてください。
お願いします🙇♀️
【2】 kを定数とする. 2次方程式 f(x)=x2+(5k-2)x+2kは, f(x)=0 で
2つの実数解 α, βをもつ。 ただし, 0 <a <1 <βとする.
以下の問いに答えよ.
(1) kの範囲を求めよ.
2
3
1 <k <
(2) (3-okを用いて表せ.
(3-a)^2=45 k2- 6| 7 k+ 8
(3)との差が整数であるとき, k,α, βの値を求めよ.
9
10 | 11
k=
||
β=
12
13
14
15
Answers
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理解できました
ありがとうございます🙇♀️