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A useful property of logarithms states that the logarithm of a product of two quantities is the sum of the logarithms of the two factors. In symbols, logo(XY)=logo(x)+logo(y). (x y) = log b (x) + log b
A useful property of logarithms states that the logarithm of a product of two quantities is the sum of the logarithms of the two factors. In symbols, logo(XY)=logo(x)+logo(y). (x y) = log b (x) + log b
0:24 5:03 Suggested clip Sum of logarithms with same base | Logarithms | Algebra II | Khan YouTubeStart of suggested client of suggested clip Sum of logarithms with same base | Logarithms | Algebra II | Khan
Intro to Adding and Subtracting Logs (Same Base) Logs of the same base can be added together by multiplying their arguments: log(XY) = log(x) + log(y). They can be subtracted by dividing the arguments: log(x/y) = log(x) — log(y).
4:08 5:07 Suggested clip Properties of Logarithms Expressing as Sum and Difference of logs YouTubeStart of suggested client of suggested clip Properties of Logarithms Expressing as Sum and Difference of logs
combine + terms with multiplication. Cancel common factors. Combine — terms with division. Cancel common factors. Write as negative exponent. Use power rule.
0:33 2:38 Suggested clip How to use the LOG10 (Log Transformation) function in Excel YouTubeStart of suggested client of suggested clip How to use the LOG10 (Log Transformation) function in Excel
Summary. The Excel LOG function returns the logarithm of a given number, using a supplied base. Get the logarithm of a number. The logarithm. =LOG (number, [base]) number — Number for which you want the logarithm. The LOG function allows you to get the logarithm of a number with a specified base. Excel LOG10 Function.

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