计算m-1/4(1-m)-1/3m(2-m/4),
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计算m-1/4(1-m)-1/3m(2-m/4),
![计算m-1/4(1-m)-1/3m(2-m/4),](/uploads/image/z/17702874-18-4.jpg?t=%E8%AE%A1%E7%AE%97m-1%2F4%281-m%29-1%2F3m%282-m%2F4%29%2C)
m-1/4(1-m)-1/3m(2-m/4),
=-(1-m)/4(1-m)-1/3m(2-m/4)
=-1/4-2/3m+1/12
=-1/6-2/3m
=-(1-m)/4(1-m)-1/3m(2-m/4)
=-1/4-2/3m+1/12
=-1/6-2/3m
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