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Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
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 -10*0.4*sin120-10*0.3*sin240-20/3*0.2*sin300 .
Question type: Mathematical calculation
Solution:
-10*0.4*sin120-10*0.3*sin240-20/3*0.2*sin300
=-10*0.4*0.580611-10*0.3*sin240-20/3*0.2*sin300
=-10*0.4*0.580611-10*0.3*0.945445-20/3*0.2*sin300
=-10*0.4*0.580611-10*0.3*0.945445-20/3*0.2*-0.999756
=-4*0.580611-10*0.3*0.945445-20/3*0.2*(-0.999756)
=(-2.322444)-10*0.3*0.945445-20/3*0.2*(-0.999756)
=-2.322444-3*0.945445-20/3*0.2*(-0.999756)
=-2.322444-2.836335-20/3*0.2*(-0.999756)
=-2.322444-2.836335-6.666667*0.2*(-0.999756)
=-2.322444-2.836335-1.333333*(-0.999756)
=-2.322444-2.836335-(-1.333008)
=-5.158779-(-1.333008)
=-3.825771
Answer:-10*0.4*sin120-10*0.3*sin240-20/3*0.2*sin300=-3.825771
Note: Radian