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Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 arithmetic calculations
[1/1 Formula]
Work: Calculate the value of equation -90-arctan0.1×60-arctan0.01×60-arctan(1/0.375)*60-arctan(1/84.85)*60+arctan(1/3)*60+arctan(1/10.61)*60 .
Question type: Mathematical calculation
Solution:
-90-arctan0.1×60-arctan0.01×60-arctan(1/0.375)*60-arctan(1/84.85)*60+arctan(1/3)*60+arctan(1/10.61)*60
=-90-arctan0.1×60-arctan0.01×60-arctan2.666667*60-arctan(1/84.85)*60+arctan(1/3)*60+arctan(1/10.61)*60
=-90-arctan0.1×60-arctan0.01×60-arctan2.666667*60-arctan0.011786*60+arctan(1/3)*60+arctan(1/10.61)*60
=-90-arctan0.1×60-arctan0.01×60-arctan2.666667*60-arctan0.011786*60+arctan0.333333*60+arctan(1/10.61)*60
=-90-arctan0.1×60-arctan0.01×60-arctan2.666667*60-arctan0.011786*60+arctan0.333333*60+arctan0.094251*60
=-90-0.099669×60-arctan0.01×60-arctan2.666667*60-arctan0.011786*60+arctan0.333333*60+arctan0.094251*60
=-90-0.099669×60-0.01×60-arctan2.666667*60-arctan0.011786*60+arctan0.333333*60+arctan0.094251*60
=-90-0.099669×60-0.01×60-1.212026*60-arctan0.011786*60+arctan0.333333*60+arctan0.094251*60
=-90-0.099669×60-0.01×60-1.212026*60-0.011785*60+arctan0.333333*60+arctan0.094251*60
=-90-0.099669×60-0.01×60-1.212026*60-0.011785*60+0.32175*60+arctan0.094251*60
=-90-0.099669×60-0.01×60-1.212026*60-0.011785*60+0.32175*60+0.093973*60
=-90-5.98014-0.01×60-1.212026*60-0.011785*60+0.32175*60+0.093973*60
=-90-5.98014-0.6-1.212026*60-0.011785*60+0.32175*60+0.093973*60
=-90-5.98014-0.6-72.72156-0.011785*60+0.32175*60+0.093973*60
=-90-5.98014-0.6-72.72156-0.7071+0.32175*60+0.093973*60
=-90-5.98014-0.6-72.72156-0.7071+19.305+0.093973*60
=-90-5.98014-0.6-72.72156-0.7071+19.305+5.63838
=-95.98014-0.6-72.72156-0.7071+19.305+5.63838
=-96.58014-72.72156-0.7071+19.305+5.63838
=-169.3017-0.7071+19.305+5.63838
=-170.0088+19.305+5.63838
=-150.7038+5.63838
=-145.06542
Answer:-90-arctan0.1×60-arctan0.01×60-arctan(1/0.375)*60-arctan(1/84.85)*60+arctan(1/3)*60+arctan(1/10.61)*60=-145.06542
Note: Radian