Math 1314 Sec 1.1

To review section 1.1 of College Algebra

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Natural Numbers

N = {1,2,3,4,...}

Integers

I = {...,-3,-2,-1,0,1,2,3,...}

Rational Numbers

p/q, where p and q are integers with q doesn't equal 0; includes fractions, repeating and terminating decimals

Irrational Numbers

Includes nonrepeating, nonterminating decimals

Real numbers

Any number that can be expressed in decimal form; includes rational and irrational numbers

Order of Operations 1

PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction)

Scientific Notation

c X 10^n, where 1 is less than or equal to the absolute value of c and c is less than 10