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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 π/4×0.5*((0.45)^2-53*(25/1000)^2)+π/4×0.4375*(20/1000)^2×53 .
Question type: Mathematical calculation
Solution:
π/4×0.5*((0.45)^2-53*(25/1000)^2)+π/4×0.4375*(20/1000)^2×53
=π/4×0.5*(0.45^2-53*(25/1000)^2)+π/4×0.4375*(20/1000)^2×53
=π/4×0.5*(0.45^2-53*0.025^2)+π/4×0.4375*(20/1000)^2×53
=π/4×0.5*0.169375+π/4×0.4375*(20/1000)^2×53
=π/4×0.5*0.169375+π/4×0.4375*0.02^2×53
=π/4×0.5*0.169375+π/4×0.4375*0.0004×53
=0.785398×0.5*0.169375+π/4×0.4375*0.0004×53
=0.392699*0.169375+π/4×0.4375*0.0004×53
=0.066513+π/4×0.4375*0.0004×53
=0.066513+0.785398×0.4375*0.0004×53
=0.066513+0.343612*0.0004×53
=0.066513+0.000137×53
=0.066513+0.007261
=0.073774
Answer:π/4×0.5*((0.45)^2-53*(25/1000)^2)+π/4×0.4375*(20/1000)^2×53=0.073774