RECIPROCAL IDENTITIES

CSC x=

SEC x=

COT x=

QUOTIENTE IDENTITIES

TAN x=

COT x=

PYTHAGOREAN IDENTITIES

SIN^2 x + COS^2 x=

TAN^2 x + 1 =

1 + COT^2 x =

EVEN ODD IDENTITIES

SIN (-x)=
CSC (-x)=

COS (-x)=
SEC (-x)=

TAN (-x)=
COT (-x)=

ADDITION AND SUBTRACTION IDENTITIES

SIN (a+b)=
SIN (s-b)=

COS (a+b)=
COS (a-b)=

TAN (a+b)=
TAN (a-b)=

DOUBLE AND HALF ANGLE IDENTITIES

SIN (2a)=

COS (2a)=

TAN (2a)=

SIN (a/2)=

COS (a/2)=

TAN (a/2)=