Please answer the following question. Thank you so much D. Find the exact value of each trigonometric expression below. Write your solutionand final answer on a separate sheet of paper.1. sin 345°2. tan(-105°)3. sin-165°4. 2sin -cos-6.6.E. The pressure P of sound waves on a person's eardrum can be modeled by2nr-fcos(프-1100)P =%3Dwhere a is the maximum sound pressure (in pounds per square foot) at thesource, r is the distance (in feet) from the source, I is the length (in feet) of thesound wave, and t is the time (in seconds). Simplify this formula when r = 16feet, I = 4 feet, and a = 0.4 pound per square foot.%3D A. Identify whether the given equation is an identity or a conditional equation. Writeyour answer on a separate sheet of paper.1. 3sine + 7sine = 10sine%3D2. 5cos0(cos0- 2sine) 5cos02 – 10cosesine3. 2tane-1 = 34. (cose- sine)(cose + sine) = cos20- sin20B. Simplify each trigonometric expression below. Write your solution and finalanswer on a separate sheet of paper.coS x csC X1.tan xcos? 82.sin? 0sin? 03. cos x (sec x - cos x)4. 2sin 3cos3C. Prove each identity below. Write your solution and final answer on a separatesheet of paper.1. cos? x = cSC x sin x - sin² x2. sin y (cot y + tan y) = secy3. sin (+0) = cos 0(sin 0+ coso)4.= csc20 +1sin 20

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D. Find the exact value of each trigonometric expression below. Write your solution and final answer on a separate sheet of paper. 1. sin 345° 2. tan(-105°) 3. sin -165°

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.3: The Addition And Subtraction Formulas

Problem 60E

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Question

Please answer the following question. Thank you so much

D. Find the exact value of each trigonometric expression below. Write your solution
and final answer on a separate sheet of paper.
1. sin 345°
2. tan(-105°)
3. sin-165°
4. 2sin -cos-
6.
6.
E. The pressure P of sound waves on a person's eardrum can be modeled by
2nr
-fcos(프-1100)
P =
%3D
where a is the maximum sound pressure (in pounds per square foot) at the
source, r is the distance (in feet) from the source, I is the length (in feet) of the
sound wave, and t is the time (in seconds). Simplify this formula when r = 16
feet, I = 4 feet, and a = 0.4 pound per square foot.
%3D

A. Identify whether the given equation is an identity or a conditional equation. Write
your answer on a separate sheet of paper.
1. 3sine + 7sine = 10sine
%3D
2. 5cos0(cos0- 2sine) 5cos02 – 10cosesine
3. 2tane-1 = 3
4. (cose- sine)(cose + sine) = cos20- sin20
B. Simplify each trigonometric expression below. Write your solution and final
answer on a separate sheet of paper.
coS x csC X
1.
tan x
cos? 8
2.
sin? 0
sin? 0
3. cos x (sec x - cos x)
4. 2sin 3cos3
C. Prove each identity below. Write your solution and final answer on a separate
sheet of paper.
1. cos? x = cSC x sin x - sin² x
2. sin y (cot y + tan y) = secy
3. sin (+0) = cos 0
(sin 0+ coso)
4.
= csc20 +1
sin 20

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