28. cota =and cscß = 24, a and ß in quadrant I =

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 21E
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I need help with last on question 28

(a) sin(a + B)
(b) cos (a + B)
(c) tan (a + B)
(d) The quadrant containing a + B
21. sina = and sinB = 3, a and ß in quadrant I
and cos
‚ œ and ß in quadrant II
23. sin a = -and cosß =, a in quadrant III and B
in quadrant I
22. cosa =
24. cosa =
in quadrant I
and sinB = 3, a in quadrant II and B
=
25. cosa = and cos ß =
in quadrant IV
26. tana and cosß=
quadrant III
27. tan a =
=
28. cota = and csc ß
13, a in quadrant III and B
-1/2 and secß = -11, a and ß in quadrant II
=
-, a in quadrant I and ß in
24,
a and ß in quadrant I
Transcribed Image Text:(a) sin(a + B) (b) cos (a + B) (c) tan (a + B) (d) The quadrant containing a + B 21. sina = and sinB = 3, a and ß in quadrant I and cos ‚ œ and ß in quadrant II 23. sin a = -and cosß =, a in quadrant III and B in quadrant I 22. cosa = 24. cosa = in quadrant I and sinB = 3, a in quadrant II and B = 25. cosa = and cos ß = in quadrant IV 26. tana and cosß= quadrant III 27. tan a = = 28. cota = and csc ß 13, a in quadrant III and B -1/2 and secß = -11, a and ß in quadrant II = -, a in quadrant I and ß in 24, a and ß in quadrant I
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