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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 20*lg(15/(7.5*((1+7.5^2))^0.5)) .
Question type: Mathematical calculation
Solution:
20*lg(15/(7.5*((1+7.5^2))^0.5))
=20*lg(15/(7.5*(57.25)^0.5))
=20*lg(15/(7.5*57.25^0.5))
=20*lg(15/56.747797)
=20*lg0.264327
=20*-0.577858
=-11.55716
Answer:20*lg(15/(7.5*((1+7.5^2))^0.5))=-11.55716