B a A b Note: Triangle may not be drawn to scale. Suppose a = 11 and A = 65 degrees. Find: b = C = B = degrees
B a A b Note: Triangle may not be drawn to scale. Suppose a = 11 and A = 65 degrees. Find: b = C = B = degrees
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 29E
Related questions
Question
![B
a
A
Note: Triangle may not be drawn to scale.
Suppose a = 11 and A = 65 degrees.
%3D
Find:
b =
C =
B =
degrees](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ed25082-0026-4235-951a-26a6d7ee0f61%2F5c2c8a6d-e42d-4a3b-b8eb-cbbfc440474a%2Fsijvtv_processed.png&w=3840&q=75)
Transcribed Image Text:B
a
A
Note: Triangle may not be drawn to scale.
Suppose a = 11 and A = 65 degrees.
%3D
Find:
b =
C =
B =
degrees
![B
a
A
b
Note: Triangle may not be drawn to scale.
Suppose a =
4 and b = 9.
Find an exact value or give at least two decimal places:
sin(A) =
cos(A) =
tan(A) =
sec(A) =
csc(A) =
%3D
cot(A) =
%D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ed25082-0026-4235-951a-26a6d7ee0f61%2F5c2c8a6d-e42d-4a3b-b8eb-cbbfc440474a%2Fcypudff_processed.png&w=3840&q=75)
Transcribed Image Text:B
a
A
b
Note: Triangle may not be drawn to scale.
Suppose a =
4 and b = 9.
Find an exact value or give at least two decimal places:
sin(A) =
cos(A) =
tan(A) =
sec(A) =
csc(A) =
%3D
cot(A) =
%D
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1
(1)
By the law of sines,
Then, .
By Pythagoras theorem,
.
Therefore, .
Since sum of interior angles of a triangle is 180.
Therefore,
Hence,
degree
Step 2
(2)
Given .
By Pythagoras theorem,
.
Therefore, .
By the trigonometric ratios,
Therefore,
Therefore,
Step by step
Solved in 3 steps
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