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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(38,8)+A(38,7)+A(38,6)+A(38,5)+A(38,4)+A(38,3)+A(38,2)+A(38,1) .
Question type: Mathematical calculation
Solution:
A(38,8)+A(38,7)+A(38,6)+A(38,5)+A(38,4)+A(38,3)+A(38,2)+A(38,1)
=398808576+A(38,7)+A(38,6)+A(38,5)+A(38,4)+A(38,3)+A(38,2)+A(38,1)
=398808576+(-818419200)+A(38,6)+A(38,5)+A(38,4)+A(38,3)+A(38,2)+A(38,1)
=398808576+(-818419200)+1987690320+A(38,5)+A(38,4)+A(38,3)+A(38,2)+A(38,1)
=398808576+(-818419200)+1987690320+60233040+A(38,4)+A(38,3)+A(38,2)+A(38,1)
=398808576+(-818419200)+1987690320+60233040+1771560+A(38,3)+A(38,2)+A(38,1)
=398808576+(-818419200)+1987690320+60233040+1771560+50616+A(38,2)+A(38,1)
=398808576+(-818419200)+1987690320+60233040+1771560+50616+1406+A(38,1)
=398808576+(-818419200)+1987690320+60233040+1771560+50616+1406+38
=-419610624+1987690320+60233040+1771560+50616+1406+38
=1568079696+60233040+1771560+50616+1406+38
=1628312736+1771560+50616+1406+38
=1630084296+50616+1406+38
=1630134912+1406+38
=1630136318+38
=1630136356
Answer:A(38,8)+A(38,7)+A(38,6)+A(38,5)+A(38,4)+A(38,3)+A(38,2)+A(38,1)=1630136356