9-30-02 2.1 Basic Assumptions, 2.2 2.3 addtion of real numbers

9-30-02 2.1 Basic Assumptions, 2.2 2.3 addtion of real numbers

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 9-30-02 2.1 Basic Assumptions, 2.2/2.3 addtion of real numbers 2.1 Basic Assumptions 1. closuer property a. a+b is a unique real # b. ab is a unique real # c. -> only 1 possiable answer 2. commutative property a. a+b=b+a b. ab=ba 3. associative property a. grouping can change b. (a+b)+c=a+(b+c) c. (ab)c=a(bc) 4. proprieties of equality a. refiltive property i. a=a ii. everything = itself b. symmetric property i. if a=b b=a u can flip the sides c. transitive property i. if a=b + b=c, a=c 5. combining variables a. (4a)(6b)=24ab, comutive +assoctiave b. 3a+4b+2+5=3a+4b+7 2.2/2.3 addtion of real numbers identey property for add: a+0=a anything +0 = itself property of oppisist a-a= 0 anything minus itself is 0 property of the oppsit of the sum -(a+b)=-a+-b the negative of 2 real num sum is the same as adding those 2 real num as negative rules for addition Problem P+p N+N P+N N+P Obeation add Add >Subtract Sign of sum P N Singe of larger vaule ...
View Full Document

This note was uploaded on 04/08/2009 for the course MATH PreCalc taught by Professor Ms.kirson during the Fall '02 term at Yeshiva.

Page1 / 2

9-30-02 2.1 Basic Assumptions, 2.2 2.3 addtion of real numbers

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online