On you calculate in scientific mode , there will be a 'log' button. This is for 'logarithms to base '10'.
So press 'log' , thern '1.6' then '-' answer is 0.204119982...
Normally logs are quoted to either '4' or '6' decimal places, so the answer would be 0.2041 or .0.204119
NB The lnl button is for logarithms to the ' natural base' ,some times denoted by ln(e). However, you will have a different result .
Log(1.6) = 0.2041
ln (1.6) = 0.470003 =~ 0.4700
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18.057299999999998
log(5)125 = log(5) 5^(3) = 3log(5) 5 = 3 (1) = 3 Remember for any log base if the coefficient is the same as the base then the answer is '1' Hence log(10)10 = 1 log(a) a = 1 et.seq., You can convert the log base '5' , to log base '10' for ease of the calculator. Log(5)125 = log(10)125/log(10)5 Hence log(5)125 = log(10) 5^(3) / log(10)5 => log(5)125 = 3log(10)5 / log(10)5 Cancel down by 'log(10)5'. Hence log(5)125 = 3 NB one of the factors of 'log' is log(a) a^(n) The index number of 'n' can be moved to be a coefficient of the 'log'. Hence log(a) a^(n) = n*log(a)a Hope that helps!!!!!
You divide log 8 / log 16. Calculate the logarithm in any base, but use the same base for both - for example, ln 8 / ln 16.
To make a natural log a log with the base of 10, you take ten to the power of you natural log. Ex: ln15=log10ln15=log510.5640138 I'm sorry if you don't have a calculator that can do this, but this will work.
It is zero