Lesson 2.8. There are 2 radians in a full rotation -- once around the circle There are 360° in a full rotation To convert from degrees to radians.
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Copyright © 2009 Pearson Addison-Wesley 1.4-1 1 Trigonometric Functions.
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WARM-UP Prove: sin 2 x + cos 2 x = 1 This is one of 3 Pythagorean Identities that we will be using in Ch. 11. The other 2 are: 1 + tan 2 x = sec 2 x 1.
T HE F UNDAMENTAL T RIGONOMETRIC I DENTITIES Dr. Shildneck Spring 2015.
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Verifying Trigonometric Identities Section 5.1. Objectives Apply a Pythagorean identity to solve a trigonometric equation. Rewrite an expression in terms.
R I A N G L E. hypotenuse leg In a right triangle, the shorter sides are called legs and the longest side (which is the one opposite the right angle)
