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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 1/2×2200×(246.8)^2-1/2×(2200-200)×(246.8-120)^2 .
Question type: Mathematical calculation
Solution:
1/2×2200×(246.8)^2-1/2×(2200-200)×(246.8-120)^2
=1/2×2200×246.8^2-1/2×(2200-200)×(246.8-120)^2
=1/2×2200×246.8^2-1/2×2000×(246.8-120)^2
=1/2×2200×246.8^2-1/2×2000×126.8^2
=1/2×2200×60910.240000000005239-1/2×2000×126.8^2
=1/2×2200×60910.240000000005239-1/2×2000×16078.239999999999782
=0.5×2200×60910.240000000005239-1/2×2000×16078.239999999999782
=1100×60910.240000000005239-1/2×2000×16078.239999999999782
=67001264-1/2×2000×16078.239999999999782
=67001264-0.5×2000×16078.239999999999782
=67001264-1000×16078.239999999999782
=67001264-16078240
=50923024
Answer:1/2×2200×(246.8)^2-1/2×(2200-200)×(246.8-120)^2=50923024