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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-arctan0.1×40-arctan0.01×40-arctan(1/0.375)*40-arctan(1/84.85)*40+arctan(1/3)*40+arctan(1/10.61)*40 .
Question type: Mathematical calculation
Solution:
-90-arctan0.1×40-arctan0.01×40-arctan(1/0.375)*40-arctan(1/84.85)*40+arctan(1/3)*40+arctan(1/10.61)*40
=-90-arctan0.1×40-arctan0.01×40-arctan2.666667*40-arctan(1/84.85)*40+arctan(1/3)*40+arctan(1/10.61)*40
=-90-arctan0.1×40-arctan0.01×40-arctan2.666667*40-arctan0.011786*40+arctan(1/3)*40+arctan(1/10.61)*40
=-90-arctan0.1×40-arctan0.01×40-arctan2.666667*40-arctan0.011786*40+arctan0.333333*40+arctan(1/10.61)*40
=-90-arctan0.1×40-arctan0.01×40-arctan2.666667*40-arctan0.011786*40+arctan0.333333*40+arctan0.094251*40
=-90-0.099669×40-arctan0.01×40-arctan2.666667*40-arctan0.011786*40+arctan0.333333*40+arctan0.094251*40
=-90-0.099669×40-0.01×40-arctan2.666667*40-arctan0.011786*40+arctan0.333333*40+arctan0.094251*40
=-90-0.099669×40-0.01×40-1.212026*40-arctan0.011786*40+arctan0.333333*40+arctan0.094251*40
=-90-0.099669×40-0.01×40-1.212026*40-0.011785*40+arctan0.333333*40+arctan0.094251*40
=-90-0.099669×40-0.01×40-1.212026*40-0.011785*40+0.32175*40+arctan0.094251*40
=-90-0.099669×40-0.01×40-1.212026*40-0.011785*40+0.32175*40+0.093973*40
=-90-3.98676-0.01×40-1.212026*40-0.011785*40+0.32175*40+0.093973*40
=-90-3.98676-0.4-1.212026*40-0.011785*40+0.32175*40+0.093973*40
=-90-3.98676-0.4-48.48104-0.011785*40+0.32175*40+0.093973*40
=-90-3.98676-0.4-48.48104-0.4714+0.32175*40+0.093973*40
=-90-3.98676-0.4-48.48104-0.4714+12.87+0.093973*40
=-90-3.98676-0.4-48.48104-0.4714+12.87+3.75892
=-93.98676-0.4-48.48104-0.4714+12.87+3.75892
=-94.38676-48.48104-0.4714+12.87+3.75892
=-142.8678-0.4714+12.87+3.75892
=-143.3392+12.87+3.75892
=-130.4692+3.75892
=-126.71028
Answer:-90-arctan0.1×40-arctan0.01×40-arctan(1/0.375)*40-arctan(1/84.85)*40+arctan(1/3)*40+arctan(1/10.61)*40=-126.71028
Note: Radian