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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 (C(4,1)*C(39,3)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*0)/C(43,4) .
    Question type: Mathematical calculation
    Solution:
          (C(4,1)*C(39,3)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*0)/C(43,4)
        =(4*C(39,3)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*0)/C(43,4)
        =(4*9139+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*0)/C(43,4)
        =(4*9139+4*C(38,2)*0+C(4,3)*C(38,0)*0)/C(43,4)
        =(4*9139+4*703*0+C(4,3)*C(38,0)*0)/C(43,4)
        =(4*9139+4*703*0+4*C(38,0)*0)/C(43,4)
        =(4*9139+4*703*0+4*1*0)/C(43,4)
        =36556/C(43,4)
        =36556/123410
        =0.296216

    Answer:(C(4,1)*C(39,3)+C(4,1)*C(38,2)*0+C(4,3)*C(38,0)*0)/C(43,4)=0.296216


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