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PC chapter 1 Cheat Sheet (DRAFT) by

Pre-calculus chapter 1

This is a draft cheat sheet. It is a work in progress and is not finished yet.

1.1 Square Roots and Cube Roots

n
is the index
a
is the radicand
n√
is the root symbol
n√a
is the radical

1.2 The Real Number System

Natural Numbers:
counting numbers
Whole Numbers:
counting numbers and zero
Integers:
positive and negative whole numbers
Rational numbers:
fraction, repeating or ternim­ating decimal
Irrational numbers:
not a rational number (see above)
Real numbers:
all numbers
A number is everything above it