若a b互为相反数,c d互为倒数,m为cd的相反数,求c+d分之a+b+cd+m的值.
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![若a b互为相反数,c d互为倒数,m为cd的相反数,求c+d分之a+b+cd+m的值.](/uploads/image/z/919470-30-0.jpg?t=%E8%8B%A5a+b%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2Cc+d%E4%BA%92%E4%B8%BA%E5%80%92%E6%95%B0%2Cm%E4%B8%BAcd%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E6%B1%82c%2Bd%E5%88%86%E4%B9%8Ba%2Bb%2Bcd%2Bm%E7%9A%84%E5%80%BC.)
若a b互为相反数,c d互为倒数,m为cd的相反数,求c+d分之a+b+cd+m的值.
若a b互为相反数,c d互为倒数,m为cd的相反数,求c+d分之a+b+cd+m的值.
若a b互为相反数,c d互为倒数,m为cd的相反数,求c+d分之a+b+cd+m的值.
互为相反数的和等于0,a+b=0
互为倒数的积等于1,cd=1
cd的相反数是-1,m=-1
c+d分之a+b+cd+m
=c+d分之0+1-1
=0
a+b=0 , cd=1 m=-1
原式=(0+1-1)/(c+d)
=0/(c+d)
=0