-2:3:6
3a+4b-c=0
且c-2b=0
得c=2b,a=(-2/3)b
则a:b:c=(-2/3)b:b:2b=-2:3:6
若3a+4b-c的绝对值+¼(c-2b)的平方=0,则a:b:c=
若3a+4b-c的绝对值+¼(c-2b)的平方=0,则a:b:c=
若3a+4b-c的绝对值+四分之一×(c-2b)的平方=0,则a:b:c=
若3a+4b-c的绝对值+四分之一×(c-2b)的平方=0,则a:b:c=
数学人气:158 ℃时间:2020-01-30 04:25:39
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