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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 1/2×2400×(415)^2-1/2×(2400-160)×(415-140)^2 .
Question type: Mathematical calculation
Solution:
1/2×2400×(415)^2-1/2×(2400-160)×(415-140)^2
=1/2×2400×415^2-1/2×(2400-160)×(415-140)^2
=1/2×2400×415^2-1/2×2240×(415-140)^2
=1/2×2400×415^2-1/2×2240×275^2
=1/2×2400×172225-1/2×2240×275^2
=1/2×2400×172225-1/2×2240×75625
=0.5×2400×172225-1/2×2240×75625
=1200×172225-1/2×2240×75625
=206670000-1/2×2240×75625
=206670000-0.5×2240×75625
=206670000-1120×75625
=206670000-84700000
=121970000
Answer:1/2×2400×(415)^2-1/2×(2400-160)×(415-140)^2=121970000