已知实数a,b满足a<-b,且a/b>0,则a的相反数+b的是相反数+ab的相反数+a+b的相反数的值为A.2a+2b+ab B.-ab C.-2a-2b+ab D.-2b+ab
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![已知实数a,b满足a<-b,且a/b>0,则a的相反数+b的是相反数+ab的相反数+a+b的相反数的值为A.2a+2b+ab B.-ab C.-2a-2b+ab D.-2b+ab](/uploads/image/z/15056937-9-7.jpg?t=%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0a%2Cb%E6%BB%A1%E8%B6%B3a%EF%BC%9C-b%2C%E4%B8%94a%2Fb%EF%BC%9E0%2C%E5%88%99a%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%2Bb%E7%9A%84%E6%98%AF%E7%9B%B8%E5%8F%8D%E6%95%B0%2Bab%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%2Ba%2Bb%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%E7%9A%84%E5%80%BC%E4%B8%BAA.2a%2B2b%2Bab+B.-ab+C.-2a-2b%2Bab+D.-2b%2Bab)
已知实数a,b满足a<-b,且a/b>0,则a的相反数+b的是相反数+ab的相反数+a+b的相反数的值为A.2a+2b+ab B.-ab C.-2a-2b+ab D.-2b+ab
已知实数a,b满足a<-b,且a/b>0,则a的相反数+b的是相反数+ab的相反数+a+b的相反数的值为
A.2a+2b+ab B.-ab C.-2a-2b+ab D.-2b+ab
已知实数a,b满足a<-b,且a/b>0,则a的相反数+b的是相反数+ab的相反数+a+b的相反数的值为A.2a+2b+ab B.-ab C.-2a-2b+ab D.-2b+ab
a<-b,且a/b>0,则有a<0,b<0
则a的相反数+b的是相反数+ab的相反数+a+b的相反数的值为-a-b-ab-(a+b)=-2(a+b)-ab
选d
由a,b满足a<-b,且a/b>0 得a,b为负数
-a-b-ab+a-b=-2b+ab
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