January 22, 2010
January 22, 2010
January 22, 2010
5.2
1.
Proving Trig. Identities
sin x - csc x = -cos x cot x
January 22, 2010
2.
sin x
=
1 + cos x
1 - cos x
sin x
January 22, 2010
3.
sec2x - 1
sec2x
= sin2x
January 22, 2010
4.
sec x + 1
tan x
=
sin x
1 - cos x
January 22, 2010
5.
tan x
+
cot x = sec x csc x
January 22, 2010
6.
tan2x - sin2x = tan2x sin2 x
January 22, 2010
7.
cos2x - sin2 x = 1 - 2 sin2 x
January 22, 2010
8.
tan x + cot y
tan x cot y
= tan y + cot x
January 22, 2010
9.
1 + sin x
1 - sin x
=
1 + sin x
cos x
January 22, 2010
10.
1 - 3cos x - 4 cos2 x
sin2x
=
1 - 4cos x
1 - cos x