The Law of Cosines states that for the triangle ABC with sides a, b, and c تی ای x ہے ۔ ای 206 In the given triangle, you know sides band c and angle A, and need to find a So you can rewrite this formula ³ - (2be コース(C -(C CH(C). Substitute known values into the alternate form of the Law of Cosines. Round your answer to three decimal places d.d. cos(4) co(108) Iyou 22 (100)
The Law of Cosines states that for the triangle ABC with sides a, b, and c تی ای x ہے ۔ ای 206 In the given triangle, you know sides band c and angle A, and need to find a So you can rewrite this formula ³ - (2be コース(C -(C CH(C). Substitute known values into the alternate form of the Law of Cosines. Round your answer to three decimal places d.d. cos(4) co(108) Iyou 22 (100)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 3E
Related questions
Question
![Use the Law of Cosines to determine the indicated side x. (Assume b-18 and c-22. Round your answer to one decimal place.)
108
Step 1
The Law of Cosines states that for the triangle ABC with sides a, b, and c
2²-2²-(6²
2ab
B
2²=22² +
484 +
In the given triangle, you know sides band c and angle A, and need to find a. So you can rewrite this formula
2²-2²-8²
(
(2bc
cos(4),
Step 2
Substitute known values into the alternate form of the Law of Cosines. Round your answer to three decimal places.
d
) cos(4)
2ab
²-2-(0
| cos(C)
com(108)
22 cos(108)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F23a6e39d-a300-44fe-ac05-99e58e08ca1c%2Ffe3ecd1e-2507-428a-943b-9e8481d5e531%2Fae7801d_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Use the Law of Cosines to determine the indicated side x. (Assume b-18 and c-22. Round your answer to one decimal place.)
108
Step 1
The Law of Cosines states that for the triangle ABC with sides a, b, and c
2²-2²-(6²
2ab
B
2²=22² +
484 +
In the given triangle, you know sides band c and angle A, and need to find a. So you can rewrite this formula
2²-2²-8²
(
(2bc
cos(4),
Step 2
Substitute known values into the alternate form of the Law of Cosines. Round your answer to three decimal places.
d
) cos(4)
2ab
²-2-(0
| cos(C)
com(108)
22 cos(108)
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