+√√² cas² S 4 cos²20 de is One of the correct steps to evaluate @ 1²00-1/²160²20 4 de- A sin²20d0 Ⓒ (в [√²+√ ] S B * de + cos 40d0 0 0 K © √ = 40 + S sin²20d0 0 0 K Ⓒ = [√ ² 1 - 1 + D do 2 0 0 cos 40d0
+√√² cas² S 4 cos²20 de is One of the correct steps to evaluate @ 1²00-1/²160²20 4 de- A sin²20d0 Ⓒ (в [√²+√ ] S B * de + cos 40d0 0 0 K © √ = 40 + S sin²20d0 0 0 K Ⓒ = [√ ² 1 - 1 + D do 2 0 0 cos 40d0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 26E
Related questions
Question
![k
[+ 4 cos²20 do is
0
One of the correct steps to evaluate
4
@ √ ² 20-1² sini
A
sin²20d0
0
Ⓒ[/²³+ [4]
do
(В
B
cos 40d0
4 10 + £²3
C
do
sin²20d0
0
Ⓒ = [√ ² - 1²
D
do
cos 40d0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faa2ef60a-ba08-4ab7-b7ac-ce5fc4033492%2F3bb704ca-a144-46f3-b3bc-a2d50c182356%2Fx22jb3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:k
[+ 4 cos²20 do is
0
One of the correct steps to evaluate
4
@ √ ² 20-1² sini
A
sin²20d0
0
Ⓒ[/²³+ [4]
do
(В
B
cos 40d0
4 10 + £²3
C
do
sin²20d0
0
Ⓒ = [√ ² - 1²
D
do
cos 40d0
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