Find the exact value of the expression. sin cos 18 + cos 36 18 sin 36 Write the expression using the sum or difference formula for sine or cosine. Select the correct choice below and fill in the answer E (Simplify your answer. Type an exact answer, using x as needed. Use integers or fractions for any numbers in the expression.) 7x 7x O A. sin cos 18 36 + cos 18 sin cos cos 36 18 36 B. sin + cos sin cos = sin 36 = sin 36 18 36 18 18 7x + cos 36 O C. sin cos sin = sin 36 =sin 36 18 18 18 7x O D. sin cos 18 36 + Cos sin 18 36 cos 18 36 = COS 7n The exact value of sin cos 18 36 + Cos sin 36 18 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) +
Find the exact value of the expression. sin cos 18 + cos 36 18 sin 36 Write the expression using the sum or difference formula for sine or cosine. Select the correct choice below and fill in the answer E (Simplify your answer. Type an exact answer, using x as needed. Use integers or fractions for any numbers in the expression.) 7x 7x O A. sin cos 18 36 + cos 18 sin cos cos 36 18 36 B. sin + cos sin cos = sin 36 = sin 36 18 36 18 18 7x + cos 36 O C. sin cos sin = sin 36 =sin 36 18 18 18 7x O D. sin cos 18 36 + Cos sin 18 36 cos 18 36 = COS 7n The exact value of sin cos 18 36 + Cos sin 36 18 (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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Transcribed Image Text:Find the exact value of the expression.
sin
+ cos
36
18
sin
36
cos
18
Write the expression using the sum or difference formula for sine or cosine. Select the correct choice below and fill in the answer E
(Simplify your answer. Type an exact answer, using x as needed. Use integers or fractions for any numbers in the expression.)
7x
7x
O A. sin
cos
36
+ cos
18
sin
18
36
cos
cos
18
36
B. sin
sin
+ cos
18
Cos
= sin
36
= sin
36
18
36
18
O C. sin
cos
18
7x
+ cos
36
sin
= sin
=sin
36
18
36
18
7x
7x
O D. sin
cos
18
36
+ Cos
18
sin
cos
= COs
36
18
36
7n
sin
36
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
The exact value of sin
+ cos
cos
18
36
18
+
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