2_MathReview_AlgebraDerivatives - 1 ECON 410 Math Review...

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Unformatted text preview: 1 ECON 410 Math Review – Algebra, Derivatives, and Partials “It is a mathematical fact that fifty percent of all doctors graduate in the bottom half of their class.”-Author Unknown Please turn your TurningTechnologies clicker to Channel 41 then answer the following: Self-Clicker Question (2 pts): Is your cell phone on? 1. No (this is the correct answer) 2. Yes 3 Class 1 – Math Review Take A Deep Breath 1. The Math gets no harder than HW1. 2. There are a few key concepts you need to master (practice). 3. No integrals. 4. At most, 10% of the class is really good at Math. 4 Class 1 – Math Review 5 Class 1 – Math Review 6 Class 1 – Math Review 1. What a variable intuitively is. 2. How to simplify a fraction a ad b c bc d = Self-Clicker Question (P): Simplify 3 divided by (2 divided by 1/3) 1. 9/2 2. 2/9 3. 1/2 4. 2/1 3 2 1 3 8 Class 1 – Math Review If you missed the last question, 1. Review section 2.1.1 in your Course Pack 2. Attend an EIM session and loudly proclaim “I would like some help simplifying fractions” 3. Watch the eLecture in Blackboard, “Simplifying Fractions” 9 Class 1 – Math Review 1. What a variable intuitively is. 2. How to simplify a fraction 3. Exponent rules 1/2 1 ( ) a b a b b b a b ab x x x x x x x x x +- = = = = Self-Clicker Question (P): Simplify 1. x5+yx3 2. x7+x5y 3. x3+yx 4. 42 3 2 2 ( ) x x y x + 11 Class 1 – Math Review If you missed the last question, 1. Review sections 2.1.2-2.1.4 in your Course Pack 2. Attend an EIM session and loudly proclaim “I would like some help dealing with variables and exponents” 3. Watch the eLecture in Blackboard, “Variables and Exponents” 4. Practice using www.wolframalpha.com or www.khanacademy.org. 12 Class 1 – Math Review 1. What a variable intuitively is. 2. How to simplify a fraction 3. Exponent rules 4. ln(x), exp(x) rules exp(ln( )) ln(exp( )) ln( ) ln( ) ln( ) ln( ) ln( ) ln( ) ln( ) ln( ) ln(1) exp(0) 1 a x x x x xy x y x x y y x a x = = = + =- = = = 13 Class 1 – Math Review ln(x) and exp(x) rules are mainly memorization (Cheat Sheet) concepts. If they do not look familiar: 1. Attend an EIM session and loudly proclaim “I would like some help dealing with the ln(x) and exp(x) rules.” 2. Watch “Working with ln(x) & exp(x)” when I post it....
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This note was uploaded on 01/05/2012 for the course ECON 410 taught by Professor Codrin during the Fall '07 term at UNC.

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2_MathReview_AlgebraDerivatives - 1 ECON 410 Math Review...

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