E Homework: Section 20.3 Double Angle Formulas Establish the identity. cot (20) = cot 0 -, sec 0 csc 0 1. 2 Choose the sequence of steps below that verifies the identity O A. cot (20)= 1. sec 0 csc 0 1. cot 0- sin (20) 2 sin 0 cos 0 2 sin 0 cos 0 2 e soɔ uis 2. cos 0- sin-0 一 sec 0 csc 0 cos (20) O B. cot (20) = sin (20) 2 sin 0 2 cos0 %3D = - cot 0 2 sin 0 cos 0 2. 2. 2 sin 0 0, uis 7 - 2 sin 0 cos 0 一 sece csc e O C. cot (20) 1. = cot 0- sin (20) 2 sin 0 cos 2 sin 0 cos 0 2. 2. 0-S0 2 sin 0 cos 0 2 cos 0-1 20). 1. = cot0--sec0csc0 2. O D. cot (20) = 1. sin (20) 2 sin 0 cos 0 2 sin 0 cos 0

E Homework: Section 20.3 Double Angle Formulas Establish the identity. cot (20) = cot 0 -, sec 0 csc 0 1. 2 Choose the sequence of steps below that verifies the identity O A. cot (20)= 1. sec 0 csc 0 1. cot 0- sin (20) 2 sin 0 cos 0 2 sin 0 cos 0 2 e soɔ uis 2. cos 0- sin-0 一 sec 0 csc 0 cos (20) O B. cot (20) = sin (20) 2 sin 0 2 cos0 %3D = - cot 0 2 sin 0 cos 0 2. 2. 2 sin 0 0, uis 7 - 2 sin 0 cos 0 一 sece csc e O C. cot (20) 1. = cot 0- sin (20) 2 sin 0 cos 2 sin 0 cos 0 2. 2. 0-S0 2 sin 0 cos 0 2 cos 0-1 20). 1. = cot0--sec0csc0 2. O D. cot (20) = 1. sin (20) 2 sin 0 cos 0 2 sin 0 cos 0

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.3: The Addition And Subtraction Formulas

Problem 60E

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