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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(12.6/2)-arctan(12.6/5)-arctan(12.6/10)+arctan(12.6) .
Question type: Mathematical calculation
Solution:
90-arctan(12.6/2)-arctan(12.6/5)-arctan(12.6/10)+arctan(12.6)
=90-arctan6.3-arctan(12.6/5)-arctan(12.6/10)+arctan(12.6)
=90-arctan6.3-arctan2.52-arctan(12.6/10)+arctan(12.6)
=90-arctan6.3-arctan2.52-arctan1.26+arctan(12.6)
=90-arctan6.3-arctan2.52-arctan1.26+arctan12.6
=90-1.413379-arctan2.52-arctan1.26+arctan12.6
=90-1.413379-1.19303-arctan1.26+arctan12.6
=90-1.413379-1.19303-0.899939+arctan12.6
=90-1.413379-1.19303-0.899939+1.491597
=88.586621-1.19303-0.899939+1.491597
=87.393591-0.899939+1.491597
=86.493652+1.491597
=87.985249
Answer:90-arctan(12.6/2)-arctan(12.6/5)-arctan(12.6/10)+arctan(12.6)=87.985249
Note: Radian