Easy Trig Identities

Front

What is the definition of cscθ?

Back

cscθ = 1/sinθ

Front

What is the definition of secθ?

Back

secθ = 1/cosθ

Front

What is the definition of cotθ?

Back

cotθ = 1/tanθ = cosθ/sinθ

Front

What is the relationship between sinθ and cscθ?

Back

sinθ = 1/cscθ

Front

What is the relationship between cosθ and secθ?

Back

cosθ = 1/secθ

Front

What is the relationship between tanθ and cotθ?

Back

tanθ = 1/cotθ

Front

Simplify: sinθ * cotθ

Back

cosθ

Front

If sinx = 1/cscx, what is cscx?

Back

cscx = 1/sinx

Front

What is the Pythagorean identity involving sin and cos?

Back

sin²θ + cos²θ = 1

Front

What is the value of tanθ in terms of sin and cos?

Back

tanθ = sinθ/cosθ