Mathematics
Junior High

(ii)の所なんですが、a<1 ≦a+2 がなんで-1<a ≦1に変形できるのかが分かりません!教えてください🙇‍♀️

-laと 11)a<1 Satzaと フラリー1Sa<lのき aー1af2- at2 a Mca)= Cazlaとz) MC (7

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