Multiply two numbers with base 2, then add the exponents Example log 30 log 2 = log 60 Quotient Rule log 2 M/N = log 2 M – log 2 N;The decibel (symbol dB) is a relative unit of measurement corresponding to one tenth of a bel (B)It is used to express the ratio of one value of a power or rootpower quantity to another, on a logarithmic scaleA logarithmic quantity in decibels is called a levelTwo signals whose levels differ by one decibel have a power ratio of 10 1/10 (approximately 126) or rootpower ratio of 10 1Oct 15, 14 · log_2 16 = x => 2^x = 16 => 2^x = 2^4 => x = 4 6026 views around the world You can reuse this answer Creative Commons License
Graphing Logarithmic Functions
