trig identities

ap pre calc trig identitites

sin^2(x)+cos^2(x)

1

1-sin^2(x)

cos^2(x)

1-cos^2(x)

sin^2(x)

1+tan^2(x)

sec^2(x)

sec^2(x)-tan^2(x)

1

tan^2(x)

sec^2(x)-1

1+cot^2(x)

csc^2(x)

cot^2(x)

csc^2(x)-1

csc^2(x)-cot^2(x)

1

tan(x)

sin(x)/cos(x)

cot(x)

cos(x)/sin(x)

csc(x)

1/sin(x)

sec(x)

1/cos(x)

sin(A-B)

sinAcosB-cosAsinB

sin(A-B)

sinAcosB-cosAsinB

cos(A+B)

cosAcosB-sinAsinB

cos(A-B)

cosAcosB+sinAsinB

sin(2x)

2sinxcosx

cos(2x)

cos^2(x)-sin^2(x)

cos(2x)

1-2sin^2(x)

cos(2x)

2cos^2(x)-1