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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 1-C(40-12,5)*C(39-12,4)/C(40,5)*C(39,4) .
    Question type: Mathematical calculation
    Solution:
          1-C(40-12,5)*C(39-12,4)/C(40,5)*C(39,4)
        =1-98280*C(39-12,4)/C(40,5)*C(39,4)
        =1-98280*17550/C(40,5)*C(39,4)
        =1-98280*17550/658008*C(39,4)
        =1-98280*17550/658008*82251
        =1-1724814000/658008*82251
        =1-2621.266003*82251
        =1-215601750.012753
        =-215601749.012753

    Answer:1-C(40-12,5)*C(39-12,4)/C(40,5)*C(39,4)=-215601749.012753


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