Mathematics
         
语言:中文    Language:English
Mathematical calculation:
    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 (-2*sin(2*9/π))+2*cos(2*9/π)-sin(9/π) .
    Question type: Mathematical calculation
    Solution:
          (-2*sin(2*9/π))+2*cos(2*9/π)-sin(9/π)
        =(-2*sin5.729578)+2*cos(2*9/π)-sin(9/π)
        =1.051518+2*cos(2*9/π)-sin(9/π)
        =1.051518+2*cos5.729578-sin(9/π)
        =1.051518+2*cos5.729578-sin2.864789
        =1.051518+2*0.850633-sin2.864789
        =1.051518+2*0.850633-0.273282
        =1.051518+1.701266-0.273282
        =2.752784-0.273282
        =2.479502

    Answer:(-2*sin(2*9/π))+2*cos(2*9/π)-sin(9/π)=2.479502
    Note: Radian


Your problem has not been solved here? Please go to the Hot Problems section!





  New addition:Lenders ToolBox module(Specific location:Math OP > Lenders ToolBox ),welcome。