总述：本次共解1题。其中
           ☆算术计算1题

〖1/1算式〗
    作业：求算式 6/17*(-3/6*log(2,3/6)-3/6*log(2,3/6))+5/17*(-1/5*log(2,1/5)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6)) 的值.
    题型：数学计算
    解:
          6/17*(-3/6*log(2,3/6)-3/6*log(2,3/6))+5/17*(-1/5*log(2,1/5)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*(-3/6*(-1)-3/6*log(2,3/6))+5/17*(-1/5*log(2,1/5)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*(-3/6*(-1)-3/6*(-1))+5/17*(-1/5*log(2,1/5)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*1+5/17*(-1/5*log(2,1/5)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*1+5/17*(-1/5*(-2.321928)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*1+5/17*(-1/5*(-2.321928)-4/5*(-0.321928))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*1+5/17*0.721928+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))
        =6/17*1+5/17*0.721928+6/17*(-4/6*(-0.584962)-2/6*log(2,2/6))
        =6/17*1+5/17*0.721928+6/17*(-4/6*(-0.584962)-2/6*(-1.584964))
        =6/17*1+5/17*0.721928+6/17*0.918296
        =0.352941*1+5/17*0.721928+6/17*0.918296
        =0.352941+5/17*0.721928+6/17*0.918296
        =0.352941+0.294118*0.721928+6/17*0.918296
        =0.352941+0.212332+6/17*0.918296
        =0.352941+0.212332+0.352941*0.918296
        =0.352941+0.212332+0.324104
        =0.565273+0.324104
        =0.889377
    答案:6/17*(-3/6*log(2,3/6)-3/6*log(2,3/6))+5/17*(-1/5*log(2,1/5)-4/5*log(2,4/5))+6/17*(-4/6*log(2,4/6)-2/6*log(2,2/6))=0.889377

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