DESCRIPTION : This Essential Trigonometry Function and Identity provides complete guide and sample practice for in very fundamental trigonometry skills. CONTENTS : This Book focus on all trigonometry skill at a time. Skills include the following: converting between degrees and radians; expressing sine, cosine, tangent, secant, cosecant, and cotangent as fractions by looking at right triangles; solving for unknown sides and angles in 45°, 90° , 30°-60°-90° right triangles etc; determining the sine, cosine, tangent, secant, cosecant, and cotangent of multiples of 30° and 45° up to 360° (working with both degrees and radians); practice finding the reference angle for angles in Quadrants II, III, and IV; finding the inverse trig functions; solving problems with trig identities (like the angle sum and difference formulas); and solving algebraic equations that feature basic trig functions. TABLE OF CONTENTS BASIC INTRODUCTION TO TRIGONOMETRIC FUNCTION/IDENTITY Relationship Between Degree And Radian Measure - Trigonometric function - Trigonometric function of acute angle - Trigonometric function of any angle - Reference angle GRAPH OF TRIGONOMETRIC FUNCTIONS Graph of Sine of Cosine - Graph of tangent - Graph of Secant - Graph of Cosecant - Graph of Cotangent SINUSODAL FUNCTION Period of Sinusodal Function - Amplitude of Sinusoidal Function TRIGONOMETRIC IDENTITIES Reciprocal identities - Pythagorean identities - Even and Odd identities TRIGONOMETRIC FUNCTIONS OF SUM AND DIFFERENCE OF TWO ANGLE Summary of All the Formula - Sum and Difference of Trigonometric Identities - Double Angle Formulae - Half Angle Formulae SUM, DIFFERENCE AND PRODUCTS OF TRIGONOMETRIC FUNCTION Sum, deference and product of trigonometric function - Trigonometric equation PHOTOCOPIES : The copyright notice permits parents/teachers who purchase one copy or borrow one copy from a library to make photocopies for their own children/students only. This is very convenient if you have multiple children/students or if a child/student needs additional practice.