3 1 ,2, 3 3 , 4 , 5 60/ 47 3 1 ,2, 3 3 , 4 , 5 60/ 47 = =3 1=4 2=5 3 1 : 2 : 3 =20 :15 :12 1=20 , 2=15 , 3=12 = 1+2+3 = 47 / / 320 =47 / 60=47/ /=60/ 47 49 74/ 7 10 3 \
2012( ) solve in R 1
: 1 (0 1 )
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