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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 (A(9,9)+A(9,8)+A(9,7)+A(9,6)+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4))) .
Question type: Mathematical calculation
Solution:
(A(9,9)+A(9,8)+A(9,7)+A(9,6)+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=(362880+A(9,8)+A(9,7)+A(9,6)+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=(362880+362880+A(9,7)+A(9,6)+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=(362880+362880+181440+A(9,6)+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=(362880+362880+181440+60480+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=(362880+362880+181440+60480+15120+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=(362880+362880+181440+60480+15120+3024)-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=985824-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=985824-16*((504+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=985824-16*((504+72+A(9,7)+A(9,6)+A(9,5)+A(9,4)))
=985824-16*((504+72+181440+A(9,6)+A(9,5)+A(9,4)))
=985824-16*((504+72+181440+60480+A(9,5)+A(9,4)))
=985824-16*((504+72+181440+60480+15120+A(9,4)))
=985824-16*((504+72+181440+60480+15120+3024))
=985824-16*(260640)
=985824-16*260640
=985824-4170240
=-3184416
Answer:(A(9,9)+A(9,8)+A(9,7)+A(9,6)+A(9,5)+A(9,4))-16*((A(9,3)+A(9,2)+A(9,7)+A(9,6)+A(9,5)+A(9,4)))=-3184416