a=0.00000000000000000000125,b=000000000000000000008,求a+b,axb

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a=0.00000000000000000000125,b=000000000000000000008,求a+b,axba=0.00000000000000000000125,b=0000000000

a=0.00000000000000000000125,b=000000000000000000008,求a+b,axb
a=0.00000000000000000000125,b=000000000000000000008,求a+b,axb

a=0.00000000000000000000125,b=000000000000000000008,求a+b,axb
因为a=1.25*10^-21,b=8*10^-21,
所以a+b=9.25*10^-21=0.00000000000000000000925
a*b=10*10^-42=1*10^-41=0.00000000000000000000000000000000000000001

a+b=9.25*10^(-21)=0.00000000000000000000925
a*b=10*10^-42=1*10^(-41)=0.00000000000000000000000000000000000000001

检举 a+b=9.25*10^(-21)=0.00000000000000000000925
a*b=10*10^-42=1*10^(-41)=0.00000000000000000000000000000000000000001