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*8.02)-arctan(0.2*8.02)-arctan(0.0583*8.02)+arctan(0.2681*8.02) 的值.
    题型：数学计算
    解:
          90-arctan(0.1*8.02)-arctan(0.2*8.02)-arctan(0.0583*8.02)+arctan(0.2681*8.02)
        =90-arctan0.802-arctan(0.2*8.02)-arctan(0.0583*8.02)+arctan(0.2681*8.02)
        =90-arctan0.802-arctan1.604-arctan(0.0583*8.02)+arctan(0.2681*8.02)
        =90-arctan0.802-arctan1.604-arctan0.467566+arctan(0.2681*8.02)
        =90-arctan0.802-arctan1.604-arctan0.467566+arctan2.150162
        =90-0.675959-arctan1.604-arctan0.467566+arctan2.150162
        =90-0.675959-1.013319-arctan0.467566+arctan2.150162
        =90-0.675959-1.013319-0.437365+arctan2.150162
        =90-0.675959-1.013319-0.437365+1.135472
        =89.324041-1.013319-0.437365+1.135472
        =88.310722-0.437365+1.135472
        =87.873357+1.135472
        =89.008829
    答案:90-arctan(0.1*8.02)-arctan(0.2*8.02)-arctan(0.0583*8.02)+arctan(0.2681*8.02)=89.008829
    注：弧度制

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