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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(0.2)-20*lg(58)-20*lg(0.12*58)-20*lg(0.02*58) .
Question type: Mathematical calculation
Solution:
20*lg(0.2)-20*lg(58)-20*lg(0.12*58)-20*lg(0.02*58)
=20*lg0.2-20*lg(58)-20*lg(0.12*58)-20*lg(0.02*58)
=20*lg0.2-20*lg58-20*lg(0.12*58)-20*lg(0.02*58)
=20*lg0.2-20*lg58-20*lg6.96-20*lg(0.02*58)
=20*lg0.2-20*lg58-20*lg6.96-20*lg1.16
=20*-0.69897-20*lg58-20*lg6.96-20*lg1.16
=20*-0.69897-20*1.763428-20*lg6.96-20*lg1.16
=20*-0.69897-20*1.763428-20*0.842609-20*lg1.16
=20*-0.69897-20*1.763428-20*0.842609-20*0.064458
=-13.9794-20*1.763428-20*0.842609-20*0.064458
=-13.9794-35.26856-20*0.842609-20*0.064458
=-13.9794-35.26856-16.85218-20*0.064458
=-13.9794-35.26856-16.85218-1.28916
=-49.24796-16.85218-1.28916
=-66.10014-1.28916
=-67.3893
Answer:20*lg(0.2)-20*lg(58)-20*lg(0.12*58)-20*lg(0.02*58)=-67.3893