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Use of Calculator : Log Function

Please explain how I make this work via my TI-30 (or any calculator for that matter). I dont understand how to "punch" it in.

10 Log 1.9X10^-4 / 1X10^-12

the answer is 82.8

Thank you for helping me get to this answer.

Solution Summary

The steps needed to plug a log function into a calculator are shown.