a的絕對(duì)值=3,b的絕對(duì)值=4,a-b的絕對(duì)值=b-a,則a+b=
a的絕對(duì)值=3,b的絕對(duì)值=4,a-b的絕對(duì)值=b-a,則a+b=
數(shù)學(xué)人氣:972 ℃時(shí)間:2020-03-25 15:00:00
優(yōu)質(zhì)解答
由!a-b!=b-a可知:a<b故:b=4當(dāng)a=3時(shí),a+b=7當(dāng)a=-3時(shí),a+b=1
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