1. Let - Tt /4< x <0. Given that tan 2x = -2, solve for tan x.
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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Question
![Double and Half Angle Identities
1. Let - Tt /4< x <0. Given that tan 2x = -2,
solve for tan x.
2. Obtain an identity for tan 40 in terms of
tan 0.
3. Solve for the exact value of cot 40 if
tane = 1/2
4. Use half-angle identities to find the
exact value of (a) sin^2 15° and (b) cos^2
15°.
5. Use half-angle identities to find the
exact value of (a) sin^2 5t/8 and (b)
cos^2 5t/8](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0856ca62-c608-4ff5-98a5-30a7d0f7c1ae%2Fbc2fbca4-7835-4f4f-9874-234e1e18e032%2F86ugh03i_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Double and Half Angle Identities
1. Let - Tt /4< x <0. Given that tan 2x = -2,
solve for tan x.
2. Obtain an identity for tan 40 in terms of
tan 0.
3. Solve for the exact value of cot 40 if
tane = 1/2
4. Use half-angle identities to find the
exact value of (a) sin^2 15° and (b) cos^2
15°.
5. Use half-angle identities to find the
exact value of (a) sin^2 5t/8 and (b)
cos^2 5t/8
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