Shdsgs Flashcards
1
Q
Cos(2x)
A
Cos^2x-sin^2x
2
Q
Tan(2x)
A
2tanx/1-tan^2x
3
Q
Sin(x/2)
A
+- square root 1-coax/2
4
Q
Cos(X/2)
A
+- square root 1+coax/2
5
Q
Tan X/2
A
1-coax/sinx
6
Q
Sin(2x)
A
2sinxcosx
