Trig identities Flashcards
1
Q
Sin(theta+-2pi)
A
=sin(theta)
2
Q
Cos(Theta+-2pi)
A
=cos(theta)
3
Q
Sin(-x)
A
=-sin(x)
4
Q
Cos(-x)
A
=Cos(x)
5
Q
Sin(pi/2-theta)
A
=Cos(theta)
6
Q
Cos(pi/2-theta)
A
=Sin(theta)
7
Q
Sin^2x+Cos^2x
A
=1
8
Q
tan^2x+1
A
=sec^2x
9
Q
sin(2x)
A
=2sin(x)cos(x)
