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If you take two values A and B, the rules of logs imply: A * B = log A + log B = log (A+B) To put it simply you find the of the two values, sum them and then find the value of the resulting log. and addition is generally easier to perform than multiplication so the result of the logs can be added together. It was used more frequently before the use of pocket calculators and people used tables of logarithms to do multiplication.
Easy. Put a log in a cup! :D
In order to find the log with a power of ten, use the LOG button. For example, to find log105, type log(5). (The parenthesis after the g will appear when you press the LOG button. In order to find a log with a power other than ten, you will have to divide by the log10 of that power. For example, to find log82, type log(8)/log(2). In order to find the natural log of a number, use the LN key. For example, to find the natural log of 91, type ln(91).
If by put together u mean add then the answer is 22
combined