PPT-8.5 Properties of Logarithms

3212014 Properties of Logarithms Let m and n be positive numbers and b 1 Product Property Quotient Property Power Property Expand and Condense Logarithmic Expressions Expand is a sum andor difference of logs. 3 largesample properties CB 101 1 FINITESAMPLE PROPERTIES How an estimator performs for 64257nite number of observations Estimator Parameter Criteria for evaluating estimators Bias does EW Variance of you would like an estimator with a smaller varia Therefore we have the following rules for natural logarithms Rules for Natural Logarithms For any variable and any positive variables and The link between the natural logarithm and the exponential along with the role of the exponential in calculatin Logarithms Logarithmsappearinallsortsofcalculationsinengineeringandscience,businessandeconomics.Beforethedaysofcalculatorstheywereusedtoassistintheprocessofmultiplicationbyreplacingtheoperationofmulti . Why do we need to know this stuff?. Base 10. Natural log. e. Richter scale. Ph. levels. Compound interest. Newton’s Law of Cooling. Earthquakes. earth·quake. (. ûrth. kw k) n. A sudden movement of the earth's crust caused by the release of stress accumulated along geologic faults or by volcanic activity.. Exponential Functions & Their Graphs. Logarithmic Functions & Their Graphs. Properties of Logarithms . Exponential and Logarithmic Equations. Exponential and Logarithmic Models. a. b.. Section 6.3 Beginning on page 310. Logarithms. For what value of x does . ? Logarithms can answer this question. Log is the inverse operation to undo unknown exponents. .  .  .  .  .  . *Read as log base b of y. f(x) = 3x – 1. 2. . 3. f(x) = 2. x. Logarithms. If f(x) = a. x. is a proper exponential function, . then the inverse of f(x), denoted by f. -1. (x), . is given by f. -1 . (x) = . log. a. x. . Recurrence Equations . Masters theorem. Recurrence . Equation. Masters . Theorem. Merge Sort. Merge Sort’s Recursive Algorithm. mergesort. (. int. A[ ], . int. p, . int. r). q . = . rounddown. ((. Assignment #38. Worksheet, no . book assignment. Common Logarithm. How many fingers do we (normally) have?. What happens after the number 9?. What happens after the number 99?. Why is it easier to multiply by 100 that by 99 even though 99 is a smaller number?. Section 6.5 Beginning on page 327. Properties. Because logarithms are the inverse functions of the exponential functions, properties of logarithms are similar to properties of exponents. . Product Property:. Exponential and Logarithmic Functions. Standard 24: Create exponential equations in a modeling context. Growth. Decay. Compound Interest. Standard 25: Utilize the properties of exponents to simplify expressions.. Logarithms. Logarithms with base 10 are common logs. You do not need to write the 10 it is understood. Button on calculator for common logs. LOG. Examples: Use calculator to evaluate each log to four decimal places. The next thing we want to do is talk about some of the properties that are inherent to logarithms. Properties of Logarithms 1. log a (uv) = log a u + log a v 1. ln(uv) = ln u + e. e is a mathematical constant. . ≈ 2.71828…. Commonly used as a base in exponential and logarithmic functions:. . exponential function – e. x. . natural . logrithm. – . log. e. x. or .