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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 -5*0.3*cos240-40/3*0.2*cos300-10*0.3*cos30 .
Question type: Mathematical calculation
Solution:
-5*0.3*cos240-40/3*0.2*cos300-10*0.3*cos30
=-5*0.3*0.325781-40/3*0.2*cos300-10*0.3*cos30
=-5*0.3*0.325781-40/3*0.2*-0.022097-10*0.3*cos30
=-5*0.3*0.325781-40/3*0.2*-0.022097-10*0.3*0.154251
=-1.5*0.325781-40/3*0.2*(-0.022097)-10*0.3*0.154251
=(-0.488671)-40/3*0.2*(-0.022097)-10*0.3*0.154251
=-0.488671-13.333333*0.2*(-0.022097)-10*0.3*0.154251
=-0.488671-2.666667*(-0.022097)-10*0.3*0.154251
=-0.488671-(-0.058925)-10*0.3*0.154251
=-0.488671--0.058925-3*0.154251
=-0.488671--0.058925-0.462753
=-0.429746-0.462753
=-0.892499
Answer:-5*0.3*cos240-40/3*0.2*cos300-10*0.3*cos30=-0.892499
Note: Radian