总述：本次共解1题。其中
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〖1/1算式〗
    作业：求算式 -75999.85009*cos(-15)/sqrt(74746.76*sin(-15)+154072.92)+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92) 的值.
    题型：数学计算
    解:
          -75999.85009*cos(-15)/sqrt(74746.76*sin(-15)+154072.92)+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos(-15)/sqrt(74746.76*sin(-15)+154072.92)+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt(74746.76*sin(-15)+154072.92)+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin-15*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin-15*cos-15/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin-15*cos-15/105465.998933/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin-15*cos-15/105465.998933/sqrt(74746.76*sin(-15)+154072.92)
        =-75999.85009*cos-15/sqrt105465.998933+3*2840371277.3566*sin-15*cos-15/105465.998933/sqrt105465.998933
        =-75999.85009*-0.759688/sqrt105465.998933+3*2840371277.3566*sin-15*cos-15/105465.998933/sqrt105465.998933
        =-75999.85009*-0.759688/324.755291+3*2840371277.3566*sin-15*cos-15/105465.998933/sqrt105465.998933
        =-75999.85009*-0.759688/324.755291+3*2840371277.3566*-0.650288*cos-15/105465.998933/sqrt105465.998933
        =-75999.85009*-0.759688/324.755291+3*2840371277.3566*-0.650288*-0.759688/105465.998933/sqrt105465.998933
        =-75999.85009*-0.759688/324.755291+3*2840371277.3566*-0.650288*-0.759688/105465.998933/324.755291
        =57736.174115/324.755291+3*2840371277.3566*(-0.650288)*(-0.759688)/105465.998933/324.755291
        =177.783629+3*2840371277.3566*(-0.650288)*(-0.759688)/105465.998933/324.755291
        =177.783629+8521113832.069799*(-0.650288)*(-0.759688)/105465.998933/324.755291
        =177.783629+(-5541178071.629005)*(-0.759688)/105465.998933/324.755291
        =177.783629+4209566486.879696/105465.998933/324.755291
        =177.783629+39913.967814/324.755291
        =177.783629+122.90475
        =300.688379
    答案:-75999.85009*cos(-15)/sqrt(74746.76*sin(-15)+154072.92)+3*2840371277.3566*sin(-15)*cos(-15)/(74746.76*sin(-15)+154072.92)/sqrt(74746.76*sin(-15)+154072.92)=300.688379
    注：弧度制

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