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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-arctan(0.1*70)-arctan(0.01*70)-arctan(70/0.375)-arctan(70/84.85)+arctan(70/3)+arctan(70/10.61) .
Question type: Mathematical calculation
Solution:
-90-arctan(0.1*70)-arctan(0.01*70)-arctan(70/0.375)-arctan(70/84.85)+arctan(70/3)+arctan(70/10.61)
=-90-arctan7-arctan(0.01*70)-arctan(70/0.375)-arctan(70/84.85)+arctan(70/3)+arctan(70/10.61)
=-90-arctan7-arctan0.7-arctan(70/0.375)-arctan(70/84.85)+arctan(70/3)+arctan(70/10.61)
=-90-arctan7-arctan0.7-arctan186.666667-arctan(70/84.85)+arctan(70/3)+arctan(70/10.61)
=-90-arctan7-arctan0.7-arctan186.666667-arctan0.824985+arctan(70/3)+arctan(70/10.61)
=-90-arctan7-arctan0.7-arctan186.666667-arctan0.824985+arctan23.333333+arctan(70/10.61)
=-90-arctan7-arctan0.7-arctan186.666667-arctan0.824985+arctan23.333333+arctan6.597549
=-90-1.428899-arctan0.7-arctan186.666667-arctan0.824985+arctan23.333333+arctan6.597549
=-90-1.428899-0.610726-arctan186.666667-arctan0.824985+arctan23.333333+arctan6.597549
=-90-1.428899-0.610726-1.565439-arctan0.824985+arctan23.333333+arctan6.597549
=-90-1.428899-0.610726-1.565439-0.689791+arctan23.333333+arctan6.597549
=-90-1.428899-0.610726-1.565439-0.689791+1.527965+arctan6.597549
=-90-1.428899-0.610726-1.565439-0.689791+1.527965+1.42037
=-91.428899-0.610726-1.565439-0.689791+1.527965+1.42037
=-92.039625-1.565439-0.689791+1.527965+1.42037
=-93.605064-0.689791+1.527965+1.42037
=-94.294855+1.527965+1.42037
=-92.76689+1.42037
=-91.34652
Answer:-90-arctan(0.1*70)-arctan(0.01*70)-arctan(70/0.375)-arctan(70/84.85)+arctan(70/3)+arctan(70/10.61)=-91.34652
Note: Radian