Trigonometric Identities

Front

What is the identity for csc² x in terms of cot² x?

Back

csc² x = 1 + cot² x

Front

What is the co-function identity for csc(90°-θ)?

Back

csc(90°-θ) = secθ

Front

What is the identity for csc x in terms of sin x?

Back

csc x = 1/sin x

Front

What is the identity for sec x in terms of cos x?

Back

sec x = 1/cos x

Front

What is the co-function identity for cot(90°-θ)?

Back

cot(90°-θ) = tanθ

Front

What is the Pythagorean identity involving sin and cos?

Back

sin² x + cos² x = 1

Front

What is the identity for tan x in terms of sin x and cos x?

Back

tan x = sin x/cos x

Front

What is the identity for cot x in terms of sin x and cos x?

Back

cot x = cos x/sin x

Front

What is the relationship between sec² x and tan² x?

Back

sec² x = 1 + tan² x

Front

What is the identity for sin² x in terms of csc x?

Back

sin² x = 1/csc² x