2.1 2: If Sin20= 3 90° ≤20≤360°. Determine the value of sin without using a calculator. 5' Consider: (sin x+cos x)² = sin 2x+1 2.2.2 H 2.2.1 Prove the above identity.
2.1 2: If Sin20= 3 90° ≤20≤360°. Determine the value of sin without using a calculator. 5' Consider: (sin x+cos x)² = sin 2x+1 2.2.2 H 2.2.1 Prove the above identity.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 43E
Related questions
Question
![point of
e equal
ecti
-On
QUESTION 2:
2.1
If Sin20 =
3
90° ≤20 ≤360°. Determine the value of sin without using a calculator.
Consider: (sin x+cos x)² = sin 2x+1
2.2.1 Prove the above identity.
2.2.2 Hence, determine the maximum value of (sin x+cos.x)
Given:
sin(4-360°).cos(90° + A)
cos(90°-A). tan(-A)
Determine the general solution of cos 4x.cos x+sin x.sin 4x = -0,7
"
Simplify the expression to a single trigonometric ration
ux
1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F38ed7a6a-b1b6-4087-895c-487048179360%2F25818f21-fb5f-480d-82be-f2d90bc0d1e6%2Fb956ofh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:point of
e equal
ecti
-On
QUESTION 2:
2.1
If Sin20 =
3
90° ≤20 ≤360°. Determine the value of sin without using a calculator.
Consider: (sin x+cos x)² = sin 2x+1
2.2.1 Prove the above identity.
2.2.2 Hence, determine the maximum value of (sin x+cos.x)
Given:
sin(4-360°).cos(90° + A)
cos(90°-A). tan(-A)
Determine the general solution of cos 4x.cos x+sin x.sin 4x = -0,7
"
Simplify the expression to a single trigonometric ration
ux
1
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