unit 5 formulas Flashcards
1
Q
sin^2x + cos^2x = ?
A
1
2
Q
sin^2x = ?
A
1 - cos^2x
3
Q
cos^2x = ?
A
1 - sin^2x
4
Q
sec^2x - tan^2x = ?
A
1
5
Q
sec^2x = ?
A
1 + tan^2x
6
Q
tan^2x = ?
A
sec^2x - 1
7
Q
csc^2x - cot^2x = ?
A
1
8
Q
csc^2x = ?
A
1 + cot^2x
9
Q
cot^2x = ?
A
csc^2x - 1
10
Q
sin (a + b)
A
sin a cos b + cos a sin b
11
Q
sin (a - b)
A
sin a cos b - cos a sin b
12
Q
cos (a + b)
A
cos a cos b - sin a sin b
13
Q
cos (a - b)
A
cos a cos b + sin a sin b
14
Q
tan (a + b)
A
(tan a + tan b) / 1 - tan a tan b
15
Q
tan (a - b)
A
(tan a - tan b) / 1 + tan a tan b