Verify eack at the fole wong ideutites. 2. 38) Sin(xtg) Sun, Ox-9) = Sınx-Scn'y

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 79E
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Verify each of the following identities.
335
Verify eack at the tollowsug edentites.
38) Sin:(xtg) Sium, Ox-9).
Sinx-Sin'y
39) (Sinx tCosy) +
(Siny tcosx)* =
=2+29in (xTy)
A0) coscxty).cas.(x-g);= Cos'y - Sinx
41) Sin Cx+30') + cos Cx+60) = COS X
Ittanx
Tーtanx
43) Sın (+x) -
cos (E tx)
=Sinx
' ENaluate eaeh ot the fe tleru ing functions
44) tan (30°+30)
47) tan (225-120")
45) tan (315-120)
48) tan 75°
46) tan (315°t60)
49) tan cz25_ 240)
50) Los 75°
512 Cos15°
52) Sin105°
53) tan 105°
Transcribed Image Text:335 Verify eack at the tollowsug edentites. 38) Sin:(xtg) Sium, Ox-9). Sinx-Sin'y 39) (Sinx tCosy) + (Siny tcosx)* = =2+29in (xTy) A0) coscxty).cas.(x-g);= Cos'y - Sinx 41) Sin Cx+30') + cos Cx+60) = COS X Ittanx Tーtanx 43) Sın (+x) - cos (E tx) =Sinx ' ENaluate eaeh ot the fe tleru ing functions 44) tan (30°+30) 47) tan (225-120") 45) tan (315-120) 48) tan 75° 46) tan (315°t60) 49) tan cz25_ 240) 50) Los 75° 512 Cos15° 52) Sin105° 53) tan 105°
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