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Transcript 
February 13, 2017
3.
sec2x - 1
sec2x
= sin2x
Obj: To prove trigonometric identites.
February 13, 2017
4.
sec x + 1
tan x
=
sin x
1 - cos x
Obj: To prove trigonometric identites.
February 13, 2017
5.
tan x
+
cot x = sec x csc x
Obj: To prove trigonometric identites.
February 13, 2017
6.
tan2x - sin2x = tan2x sin2 x
Obj: To prove trigonometric identites.
February 13, 2017
7.
cos2x - sin2 x = 1 - 2 sin2 x
Obj: To prove trigonometric identites.
February 13, 2017
Obj: To prove trigonometric identites.
8.
tan x + cot y
tan x cot y
= tan y + cot x
February 13, 2017
Obj: To prove trigonometric identites.
9.
1 + sin x
1 - sin x
=
1 + sin x
cos x
February 13, 2017
Obj: To prove trigonometric identites.
10.
1 - 3cos x - 4 cos2 x
2
sin x
=
1 - 4cos x
1 - cos x
February 13, 2017
Obj: To prove trigonometric identites.
HF:
(HR): DAY 1: (5.2) Pg.418: 11-33odd
DAY 2: (5.2) Pg.418: 35-41odd, 45, 47
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