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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-arctan0.1×3-arctan0.01×3-arctan(1/0.375)*3-arctan(1/84.85)*3+arctan(1/3)*3+arctan(1/10.61)*3 .
Question type: Mathematical calculation
Solution:
-90-arctan0.1×3-arctan0.01×3-arctan(1/0.375)*3-arctan(1/84.85)*3+arctan(1/3)*3+arctan(1/10.61)*3
=-90-arctan0.1×3-arctan0.01×3-arctan2.666667*3-arctan(1/84.85)*3+arctan(1/3)*3+arctan(1/10.61)*3
=-90-arctan0.1×3-arctan0.01×3-arctan2.666667*3-arctan0.011786*3+arctan(1/3)*3+arctan(1/10.61)*3
=-90-arctan0.1×3-arctan0.01×3-arctan2.666667*3-arctan0.011786*3+arctan0.333333*3+arctan(1/10.61)*3
=-90-arctan0.1×3-arctan0.01×3-arctan2.666667*3-arctan0.011786*3+arctan0.333333*3+arctan0.094251*3
=-90-0.099669×3-arctan0.01×3-arctan2.666667*3-arctan0.011786*3+arctan0.333333*3+arctan0.094251*3
=-90-0.099669×3-0.01×3-arctan2.666667*3-arctan0.011786*3+arctan0.333333*3+arctan0.094251*3
=-90-0.099669×3-0.01×3-1.212026*3-arctan0.011786*3+arctan0.333333*3+arctan0.094251*3
=-90-0.099669×3-0.01×3-1.212026*3-0.011785*3+arctan0.333333*3+arctan0.094251*3
=-90-0.099669×3-0.01×3-1.212026*3-0.011785*3+0.32175*3+arctan0.094251*3
=-90-0.099669×3-0.01×3-1.212026*3-0.011785*3+0.32175*3+0.093973*3
=-90-0.299007-0.01×3-1.212026*3-0.011785*3+0.32175*3+0.093973*3
=-90-0.299007-0.03-1.212026*3-0.011785*3+0.32175*3+0.093973*3
=-90-0.299007-0.03-3.636078-0.011785*3+0.32175*3+0.093973*3
=-90-0.299007-0.03-3.636078-0.035355+0.32175*3+0.093973*3
=-90-0.299007-0.03-3.636078-0.035355+0.96525+0.093973*3
=-90-0.299007-0.03-3.636078-0.035355+0.96525+0.281919
=-90.299007-0.03-3.636078-0.035355+0.96525+0.281919
=-90.329007-3.636078-0.035355+0.96525+0.281919
=-93.965085-0.035355+0.96525+0.281919
=-94.00044+0.96525+0.281919
=-93.03519+0.281919
=-92.753271
Answer:-90-arctan0.1×3-arctan0.01×3-arctan(1/0.375)*3-arctan(1/84.85)*3+arctan(1/3)*3+arctan(1/10.61)*3=-92.753271
Note: Radian