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It supports mathematical functions (including trigonometric functions).
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-arctan0.1×70-arctan0.01×70-arctan(1/0.375)*70-arctan(1/84.85)*70+arctan(1/3)*70+arctan(1/10.61)*70 .
Question type: Mathematical calculation
Solution:
-90-arctan0.1×70-arctan0.01×70-arctan(1/0.375)*70-arctan(1/84.85)*70+arctan(1/3)*70+arctan(1/10.61)*70
=-90-arctan0.1×70-arctan0.01×70-arctan2.666667*70-arctan(1/84.85)*70+arctan(1/3)*70+arctan(1/10.61)*70
=-90-arctan0.1×70-arctan0.01×70-arctan2.666667*70-arctan0.011786*70+arctan(1/3)*70+arctan(1/10.61)*70
=-90-arctan0.1×70-arctan0.01×70-arctan2.666667*70-arctan0.011786*70+arctan0.333333*70+arctan(1/10.61)*70
=-90-arctan0.1×70-arctan0.01×70-arctan2.666667*70-arctan0.011786*70+arctan0.333333*70+arctan0.094251*70
=-90-0.099669×70-arctan0.01×70-arctan2.666667*70-arctan0.011786*70+arctan0.333333*70+arctan0.094251*70
=-90-0.099669×70-0.01×70-arctan2.666667*70-arctan0.011786*70+arctan0.333333*70+arctan0.094251*70
=-90-0.099669×70-0.01×70-1.212026*70-arctan0.011786*70+arctan0.333333*70+arctan0.094251*70
=-90-0.099669×70-0.01×70-1.212026*70-0.011785*70+arctan0.333333*70+arctan0.094251*70
=-90-0.099669×70-0.01×70-1.212026*70-0.011785*70+0.32175*70+arctan0.094251*70
=-90-0.099669×70-0.01×70-1.212026*70-0.011785*70+0.32175*70+0.093973*70
=-90-6.97683-0.01×70-1.212026*70-0.011785*70+0.32175*70+0.093973*70
=-90-6.97683-0.7-1.212026*70-0.011785*70+0.32175*70+0.093973*70
=-90-6.97683-0.7-84.84182-0.011785*70+0.32175*70+0.093973*70
=-90-6.97683-0.7-84.84182-0.82495+0.32175*70+0.093973*70
=-90-6.97683-0.7-84.84182-0.82495+22.5225+0.093973*70
=-90-6.97683-0.7-84.84182-0.82495+22.5225+6.57811
=-96.97683-0.7-84.84182-0.82495+22.5225+6.57811
=-97.67683-84.84182-0.82495+22.5225+6.57811
=-182.51865-0.82495+22.5225+6.57811
=-183.3436+22.5225+6.57811
=-160.8211+6.57811
=-154.24299
Answer:-90-arctan0.1×70-arctan0.01×70-arctan(1/0.375)*70-arctan(1/84.85)*70+arctan(1/3)*70+arctan(1/10.61)*70=-154.24299
Note: Radian