trig Flashcards
1
Q
Sin Cos ID
A
sin^2+cos^2=1
2
Q
Tan ID
A
Tan^2+1=sec^2
3
Q
sin(2x)
A
2sinxcosx
4
Q
cos(2x)
A
cos^2x-sin^2x
5
Q
sin^2x
A
1/2(1-cos(2x))
6
Q
cos^2x
A
1/2(1+cos(2x))
