Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Download Syllabus Objectives: 3
Transcript
Precalculus Notes: Unit 4.7-4.8 & 5 â Trigonometric Identities Power Reducing Identities 1 ï cos 2ï± 2 1 ï« cos 2ï± cos 2 ï± ï½ 2 1 ï cos 2ï± tan 2 ï± ï½ 1 ï« cos 2ï± sin 2 ï± ï½ Ex6: Express cos5 x in terms of trig functions with no power greater than 1. Rewrite as a product Power reducing identity Multiply Power reducing identity You Try: 1. Find the solutions to 2cos x ï« sin 2 x ï½ 0 in ï0,2ï° ï© . 2. Verify 2cos2ï¡ ï½ cot ï¡ ï tan ï¡ . sin 2ï¡ Reflection: How do you convert from a cosine function to a sine function? Explain. Page 22 of 24 Precalculus â Graphical, Numerical, Algebraic: Pearson Chapter 4
