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6. cos(2B)

6. cos(2B)

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Solve only problem number 6

for sas 37 and cos B =, for 0< BSn, evaluate each of the following. Given: tana =- A. Make a sketch in the correct quadrant of both angles, a and B. B. Find the exact value for each trigonometric expression. No decimal approximations. Write the formula used for each problem, then substitute the values and simplify completely. Rationalize all denominators, where necessary. 1. cos(a + B) 4. tan (2a) 7. cos 2 tan (a + B) 5. sin(2a) 2. 8. tan 3. sin(a - B) 6. cos(2B) 9. sin
Transcribed Image Text:for sas 37 and cos B =, for 0< BSn, evaluate each of the following. Given: tana =- A. Make a sketch in the correct quadrant of both angles, a and B. B. Find the exact value for each trigonometric expression. No decimal approximations. Write the formula used for each problem, then substitute the values and simplify completely. Rationalize all denominators, where necessary. 1. cos(a + B) 4. tan (2a) 7. cos 2 tan (a + B) 5. sin(2a) 2. 8. tan 3. sin(a - B) 6. cos(2B) 9. sin
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