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 -90-arctan(0.1*150)-arctan(0.01*150)-arctan(150/0.375)-arctan(150/84.85)+arctan(150/3)+arctan(150/10.61) 的值.
    题型：数学计算
    解:
          -90-arctan(0.1*150)-arctan(0.01*150)-arctan(150/0.375)-arctan(150/84.85)+arctan(150/3)+arctan(150/10.61)
        =-90-arctan15-arctan(0.01*150)-arctan(150/0.375)-arctan(150/84.85)+arctan(150/3)+arctan(150/10.61)
        =-90-arctan15-arctan1.5-arctan(150/0.375)-arctan(150/84.85)+arctan(150/3)+arctan(150/10.61)
        =-90-arctan15-arctan1.5-arctan400-arctan(150/84.85)+arctan(150/3)+arctan(150/10.61)
        =-90-arctan15-arctan1.5-arctan400-arctan1.767826+arctan(150/3)+arctan(150/10.61)
        =-90-arctan15-arctan1.5-arctan400-arctan1.767826+arctan50+arctan(150/10.61)
        =-90-arctan15-arctan1.5-arctan400-arctan1.767826+arctan50+arctan14.137606
        =-90-1.504228-arctan1.5-arctan400-arctan1.767826+arctan50+arctan14.137606
        =-90-1.504228-0.982794-arctan400-arctan1.767826+arctan50+arctan14.137606
        =-90-1.504228-0.982794-1.568296-arctan1.767826+arctan50+arctan14.137606
        =-90-1.504228-0.982794-1.568296-1.056005+arctan50+arctan14.137606
        =-90-1.504228-0.982794-1.568296-1.056005+1.550799+arctan14.137606
        =-90-1.504228-0.982794-1.568296-1.056005+1.550799+1.500181
        =-91.504228-0.982794-1.568296-1.056005+1.550799+1.500181
        =-92.487022-1.568296-1.056005+1.550799+1.500181
        =-94.055318-1.056005+1.550799+1.500181
        =-95.111323+1.550799+1.500181
        =-93.560524+1.500181
        =-92.060343
    答案:-90-arctan(0.1*150)-arctan(0.01*150)-arctan(150/0.375)-arctan(150/84.85)+arctan(150/3)+arctan(150/10.61)=-92.060343
    注：弧度制

你的问题在这里没有得到解决？请到 热门难题 里面看看吧！