Use a double-angle formula to find the exact value of the given expression. 1-2 sin ²157.5° 1-2 sin ²157.5° = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
Use a double-angle formula to find the exact value of the given expression. 1-2 sin ²157.5° 1-2 sin ²157.5° = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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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![Use a double-angle formula to find the exact value of the given expression.
1-2 sin ²157.5°
1-2 sin ²157.5° =
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd2659b4c-30a6-48d4-90ed-e5c7a02f7b8e%2F5f224f1c-328a-4357-8a35-9e1b93f5a329%2Fk9cys1_processed.png&w=3840&q=75)
Transcribed Image Text:Use a double-angle formula to find the exact value of the given expression.
1-2 sin ²157.5°
1-2 sin ²157.5° =
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
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