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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-arctan(0.1*2000)-arctan(0.01*2000)-arctan(2000/0.375)-arctan(2000/84.85)+arctan(2000/3)+arctan(2000/10.61) .
Question type: Mathematical calculation
Solution:
-90-arctan(0.1*2000)-arctan(0.01*2000)-arctan(2000/0.375)-arctan(2000/84.85)+arctan(2000/3)+arctan(2000/10.61)
=-90-arctan200-arctan(0.01*2000)-arctan(2000/0.375)-arctan(2000/84.85)+arctan(2000/3)+arctan(2000/10.61)
=-90-arctan200-arctan20-arctan(2000/0.375)-arctan(2000/84.85)+arctan(2000/3)+arctan(2000/10.61)
=-90-arctan200-arctan20-arctan5333.333333-arctan(2000/84.85)+arctan(2000/3)+arctan(2000/10.61)
=-90-arctan200-arctan20-arctan5333.333333-arctan23.571008+arctan(2000/3)+arctan(2000/10.61)
=-90-arctan200-arctan20-arctan5333.333333-arctan23.571008+arctan666.666667+arctan(2000/10.61)
=-90-arctan200-arctan20-arctan5333.333333-arctan23.571008+arctan666.666667+arctan188.501414
=-90-1.565796-arctan20-arctan5333.333333-arctan23.571008+arctan666.666667+arctan188.501414
=-90-1.565796-1.520838-arctan5333.333333-arctan23.571008+arctan666.666667+arctan188.501414
=-90-1.565796-1.520838-1.570609-arctan23.571008+arctan666.666667+arctan188.501414
=-90-1.565796-1.520838-1.570609-1.528397+arctan666.666667+arctan188.501414
=-90-1.565796-1.520838-1.570609-1.528397+1.569296+arctan188.501414
=-90-1.565796-1.520838-1.570609-1.528397+1.569296+1.565491
=-91.565796-1.520838-1.570609-1.528397+1.569296+1.565491
=-93.086634-1.570609-1.528397+1.569296+1.565491
=-94.657243-1.528397+1.569296+1.565491
=-96.18564+1.569296+1.565491
=-94.616344+1.565491
=-93.050853
Answer:-90-arctan(0.1*2000)-arctan(0.01*2000)-arctan(2000/0.375)-arctan(2000/84.85)+arctan(2000/3)+arctan(2000/10.61)=-93.050853
Note: Radian