Chapter 6 Study Guide
Chapter 6 Study Guide Math 163
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This 3 page Study Guide was uploaded by Asif Khan on Monday November 2, 2015. The Study Guide belongs to Math 163 at Old Dominion University taught by Robert Williams in Summer 2015. Since its upload, it has received 40 views. For similar materials see Precalculus II in Math at Old Dominion University.
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Date Created: 11/02/15
Chapter 6 Study Guide 6 1 Verifying Trig Identities Identities You Need To Know RECIPROCAL IDENTITIES QUOTIENT IDENTITIES l 39 A s1nx D secx G tanxz smx csc x cosx cosx 1 1 B cosx E cscx H cotxch x sec x 5m x 5m x C tan 1 F cot x cot x tan x PYTHAGOREAN IDENTITIES 2 A sinzx coszx 1 or B 1 tan2x seczx C 1 cotzx csc x 2 coszx 1 sin x or sinzx 1 coszx Examples secA2X1tanxtanx cscxsinXcosxcotx 62 Sum and Difference Formulas HifIliLa Aquot Iiquot Fi T1 1 mm ET ff mmng mmgm ff Lme mm ffT PEI1fo 512m f2 am 1 15nr1ff Lama 3 I T Ei391f am 33 Examples Cos pi 12 Cos 7pi 12 Sin 5pi12 Tan 5pi 12 63 Double and HalfAngle Formulas Double Angle Formulas 5111 2x 2 sm xcos x COS 2x COS x Sin x J 2 tan x 2008 26 1 tan 2x q I 3 l tan x l 231n x Half Angle Formulas x l cosx x lcosx sm 2 i 008 i 2 2 2 2 x l COS 6 sin x The or depends in taH which quadrant the original 5111 x 1 COS X given value exists Cos theta45 theta is in Q1 Sin 2theta Cos 2theta Tan 2theta Cos theta35 theta is in QIV Sin theta2 Cos theta2 Tan theta2
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