12 9. If sin x = and cos y = -13, where 0≤x≤ and ≤ y ≤n, find the following 13 a) tan(x + y) b) sec(x - y)
12 9. If sin x = and cos y = -13, where 0≤x≤ and ≤ y ≤n, find the following 13 a) tan(x + y) b) sec(x - y)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
Related questions
Question
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9 please
Transcribed Image Text:= 4.11 Review Trig
a) cos-cos-sin-sin-
12
4
8. Simplify
a)
a) tan(x + y)
4
(sinx+cosx)(sinx-cosx)+1
sin² x
2
1 / 2
4
9. If sin x = and cos y =
5
12
3
-
12
13'
b)
110% ullseer >>
b) csc 2x
12
TC
1-tan-7/2 tan
6
11. Prove the following identities
b) sec(x - y)
TC
b) 2 sin² x + cos 2x
6
FIN
where 0≤x≤ and ≤ y ≤, find the following
10. If cotx = -for≤x≤, find the following
2
a) tan 2x
2
tan² x sin² x
sec² x
c).
D2L 4.8 Formula Sheet -
← → CO
3 ↑
MM 4 G
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