23 terms

Reciprocal Identities, Quotient Identities, Pythagorean Identities, Cofunction Identities, and Even and Odd Identities

sin x (Reciprocal Identities)

1/csc x

cos x (Reciprocal Identities)

1/sec x

tan x (Reciprocal Identities)

1/cot x

csc x (Reciprocal Identities)

1/sin x

sec x (Reciprocal Identities)

1/cos x

cot x (Reciprocal Identities)

1/tan x

sin x/ cos x (Quotient Identities)

tan x

cos x/ sin x (Quotient Identities)

cot x

sin²x+cos²x (Pythagorean Identities)

1

1+tan²x (Pythagorean Identities)

sec²x

1+cos²x (Pythagorean Identities)

csc²x

sin[ (π/2) - x ] (Cofunction Identities)

cos x

tan[ (π/2) - x ] (Cofunction Identities)

cot x

sec[ (π/2) - x ] (Cofunction Identities)

csc x

cos[ (π/2) - x ] (Cofunction Identities)

sin x

cot[ (π/2) - x ] (Cofunction Identities)

tan x

csc[ (π/2) - x ] (Cofunction Identities)

sec x

sin(-x) (Even/Odd Identities)

-(sin x)

cos(-x) (Even/Odd Identities)

cos x

tan(-x) (Even/Odd Identities)

-(tan x)

csc(-x) (Even/Odd Identities)

-(csc x)

sec(-x) (Even/Odd Identities)

sec x

cot(-x) (Even/Odd Identities)

-(cot x)