Trig Identities Flashcards
1
Q
cos^2π + sin^2π
A
1
2
Q
1 + tan^2π
A
sec^2π
3
Q
cot^2π + 1
A
csc^2π
4
Q
sin(π / 2β π)
A
cosπ
5
Q
cos( π/2 β π)
A
sinπ
6
Q
cos( πΌ+π½ )
A
cosπΌcosπ½βsinπΌsinπ½
7
Q
cos(πΌβπ½)
A
cosπΌcosπ½+sinπΌsinπ½
8
Q
sin( πΌ+ π½ )
A
sinπΌcosπ½+cosπΌsinπ½
9
Q
sin(πΌβπ½)
A
sinπΌcosπ½βcosπΌsinπ½
10
Q
cos(2π)
A
cos^2 π β sin2 π
11
Q
sin(2π)
A
2 sin π cos π
12
Q
cos^2 π
A
1/2 (1 + cos(2π))
13
Q
sin^2 π
A
1/2 (1 β cos(2π))
14
Q
a^x
A
a^xlna
15
Q
secx
A
secxtanx
