Pre Calculus - Trig Identities

1/csc(x)

1/sec(x)

1/cot(x)

1/sin(x)

1/cos(x)

1/tan(x)

sin(x)/cos(x)

cos(x)/sin(x)

1

csc(x)²

1

-tan(x)

-cot(x)

-sin(x)

-csc(x)

cos(x)

sec(x)

cos(pi/2-x)

sin(pi/2-x)

cot(pi/2-x)

tan(pi/2-x)

csc(pi/2-0)

sec(pi/2-x)

cosAcosB-sinAsinB

cosAcosB+sinAsinB

sinAcosB+cosAsinB

sinAcosB-cosAsinB

tanA+tanB/1-tanAtanB

tanA-tanB/1+tanAtanB

2sin(x)cos(x)

cos(x)²-sin(x)²

1-2sin(x)²

2cos(x)²-1

2tan(x)/1-tan(x)²