13 Find the exact value of sin (x-y), the sine angle between two wires. 14-15. Find csc x and sec y.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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For numbers 13-15, read the problem and solve what is being asked.
Problem: A new satellite network tower was installed in the non-
receptive areas of Mabatang and Calaguiman. The satellite is braced
by two wires fastened to the ground at the same point. The shorter
by 30 ft long and fastened to the tower 10 feet above the foot of the
feet above the foot of the pole.
12 Find the exact value of sin (x-y), the sine angle between two wires.
14-15. Find csc x and sec y.
O Additional Activities
More and more practice!
Let us practice what we have learned in this module. But challenge
yourself to be more efficient! Complete the five tasks in just 30
minutes.
All you have to do is to give what is being asked. Enjoy answering
Trigo-Identities!
1. Prove the even-odd identity of sine function using angle sum
identity of cosine.
2. Prove using the angle sum identity of sine: sin 90° = 1.
%3D
3. Prove that: sin2 (45° + 0) + sin- (45° – 0)=1
4. Prove that: cos (45° + A) – sin (45° – A)3D0
5. Simplify: 2(tan45°-A)/(1+tan²(45°-A)
21
Transcribed Image Text:For numbers 13-15, read the problem and solve what is being asked. Problem: A new satellite network tower was installed in the non- receptive areas of Mabatang and Calaguiman. The satellite is braced by two wires fastened to the ground at the same point. The shorter by 30 ft long and fastened to the tower 10 feet above the foot of the feet above the foot of the pole. 12 Find the exact value of sin (x-y), the sine angle between two wires. 14-15. Find csc x and sec y. O Additional Activities More and more practice! Let us practice what we have learned in this module. But challenge yourself to be more efficient! Complete the five tasks in just 30 minutes. All you have to do is to give what is being asked. Enjoy answering Trigo-Identities! 1. Prove the even-odd identity of sine function using angle sum identity of cosine. 2. Prove using the angle sum identity of sine: sin 90° = 1. %3D 3. Prove that: sin2 (45° + 0) + sin- (45° – 0)=1 4. Prove that: cos (45° + A) – sin (45° – A)3D0 5. Simplify: 2(tan45°-A)/(1+tan²(45°-A) 21
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