Mathematics
Senior High
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-1<1/2m<1
この不等式ってどうやって解くんでしたっけ?

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✨ Best Answer ✨

正負で場合分けをして、
-1<1/2m<0,0≦1/2m<1
符号に注意して2mをかけ、
0<1<-2m,0≦1<2m
整理して
m<-1/2,1/2<m

みそだる

ありがとうございます!

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