1. Suppose we know sin a = and 0 < a <<, and suppose we also know cos 3 =25 and- <3 <0. Use this to find the exact values (not decimal approximations) for each of the following, showing all work in your process, and illustrating each on a unit circle: a. sin(a+B) b. cos(a + B) .tan(a-B) (Hint for this one: Use the definition of tangent and the related formulas for sine and cosine, then simplify.) d. sin(2a) e. cos(28) f. cos() 8. sin()
1. Suppose we know sin a = and 0 < a <<, and suppose we also know cos 3 =25 and- <3 <0. Use this to find the exact values (not decimal approximations) for each of the following, showing all work in your process, and illustrating each on a unit circle: a. sin(a+B) b. cos(a + B) .tan(a-B) (Hint for this one: Use the definition of tangent and the related formulas for sine and cosine, then simplify.) d. sin(2a) e. cos(28) f. cos() 8. sin()
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 10E
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