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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(0.78*14.65)-arctan(0.2*0.78)-arctan(0.5*0.78)-arctan(0.78*172.39) .
Question type: Mathematical calculation
Solution:
-90+arctan(0.78*14.65)-arctan(0.2*0.78)-arctan(0.5*0.78)-arctan(0.78*172.39)
=-90+arctan11.427-arctan(0.2*0.78)-arctan(0.5*0.78)-arctan(0.78*172.39)
=-90+arctan11.427-arctan0.156-arctan(0.5*0.78)-arctan(0.78*172.39)
=-90+arctan11.427-arctan0.156-arctan0.39-arctan(0.78*172.39)
=-90+arctan11.427-arctan0.156-arctan0.39-arctan134.4642
=-90+1.483507-arctan0.156-arctan0.39-arctan134.4642
=-90+1.483507-0.154753-arctan0.39-arctan134.4642
=-90+1.483507-0.154753-0.371856-arctan134.4642
=-90+1.483507-0.154753-0.371856-1.56336
=-88.516493-0.154753-0.371856-1.56336
=-88.671246-0.371856-1.56336
=-89.043102-1.56336
=-90.606462
Answer:-90+arctan(0.78*14.65)-arctan(0.2*0.78)-arctan(0.5*0.78)-arctan(0.78*172.39)=-90.606462
Note: Radian