## Basic trigonometry formulas

### TRIGONOMETRY NOTES By STEVEN SY Copyright 2008

TRIGONOMETRY FORMULAS cos 2 (x) +sin 2 (x) =1 1+ tan 2 (x) = sec 2 (x) cot 2 (x) +1= csc 2 (x) cos( ) cos( )cos( ) sin( )sin( ) sin( ) sin( )cos( ) cos( )sin( )

### Trigonometry Formulas for Functions, Ratios and Identities With Fr…

One of the simplest and most basic formulas in Trigonometry provides the measure of an arc in terms of the radius of the circle, N, and the arc’s central angle θ, expressed in radians. The formula is easily ...

### Math Formulas: Trigonometry Identities

©2005 Paul Dawkins Trig Cheat Sheet Definition of the Trig Functions Right triangle definition For this definition we assume that 0 2 p

### Basic Trigonometry Review - Lone Star College System

0.1 Basic Facts 1. DO NOT BLINDLY APPLY powers and roots across expressions that have or signs. 2. As in comment 1, is something that can NOT be simpliﬁed!!

### TRIGONOMETRY FORMULAS = sec x cot 2 (x) +1 = csc x

The Basics of Trigonometry I. Definitions An angle is formed by rotating a ray around its endpoint or vertex. The initial position of the ray is the initial side of the angle, while the location of the ray at the end of its rotation is the terminal side of the angle. If the rotation of an angle is counterclockwise, the angle is positive; if the rotation is clockwise, the B. c. angle is ...

### Trigonometry - mecmath

Basic Review of Trigonometry RIGHT TRIANGLE The 6 basic trigonometric functions: 1) sin = opp / hyp 4) csc = hyp / opp 2) cos = adj / hyp 5) sec = hyp / adj 3) tan = opp / adj 6) cot = adj / opp SPECIAL TRIANGLES 30 -60 -90 45 -45 -90 2 2 2 cos 60 2 UNIT CIRCLE Given a circle of radius 1, centered at the origin on an x-y coordinate system. The equation of this circle is x2 + y2 = 1. If we let ...

### www.retawprojects.com

www.mathportal.org Integration Formulas 1. Common Integrals Indefinite Integral Method of substitution ∫ ∫f g x g x dx f u du( ( )) ( ) ( )′ = Integration by parts

### Math Handbook of Formulas, Processes and Tricks

An Introduction to Trigonometry P.Maidorn I. Basic Concepts The trigonometric functions are based on the unit circle, that is a circle with radius r=1. Since the circumference of a circle with radius r is C=2Br, the unit circle has circumference 2B. For any point (x,y) on the unit circle, the associated angle 2 can be measured in two different ways: 1. degree measure: in this case the ...

### TRIGONOMETRY NOTES By STEVEN SY Copyright 2008

TRIGONOMETRY FORMULAS cos 2 (x) +sin 2 (x) =1 1+ tan 2 (x) = sec 2 (x) cot 2 (x) +1= csc 2 (x) cos( ) cos( )cos( ) sin( )sin( ) sin( ) sin( )cos( ) cos( )sin( )

### An Introduction to Trigonometry - uregina.ca

www.mathportal.org Math Formulas: Trigonometry Identities Right-Triangle De nitions 1. sin = Opposite Hypotenuse 2. cos = Adjacent Hypotenuse 3. tan = Opposite