Trig Identities Practice

Front

What is the Pythagorean identity for sine and cosine?

Back

sin²θ + cos²θ = 1

Front

What is the identity relating tangent and secant?

Back

1 + tan²θ = sec²θ

Front

What is the identity relating cotangent and cosecant?

Back

1 + cot²θ = csc²θ

Front

What is the definition of cosecant?

Back

cscθ = 1/sinθ

Front

What is the definition of secant?

Back

secθ = 1/cosθ

Front

What is the definition of cotangent?

Back

cotθ = 1/tanθ = cosθ/sinθ

Front

Simplify: 1 - sin²θ

Back

cos²θ

Front

Simplify: 1 - cos²θ

Back

sin²θ

Front

Solve for tan²θ: 1 + tan²θ = sec²θ

Back

tan²θ = sec²θ - 1

Front

Solve for csc²θ: 1 + cot²θ = csc²θ

Back

csc²θ = 1 + cot²θ