Trig Identities

Front

Simplify: (secx-1)(secx+1).

Back

tan²x

Front

Simplify: sin²θ + cos²θ = ?

Back

1

Front

What is the Pythagorean identity for sine and cosine?

Back

sin²θ + cos²θ = 1

Front

According to the negative angle identities: cos(-y) = ?

Back

cos(y)

Front

What is the value of sec(θ) in terms of cos(θ)?

Back

sec(θ) = 1/cos(θ)

Front

Simplify: 1 - sin²θ = ?

Back

cos²θ

Front

What is the relationship between tan(θ) and sin(θ), cos(θ)?

Back

tan(θ) = sin(θ)/cos(θ)

Front

Simplify: (sinθ/cosθ)² = ?

Back

tan²θ

Front

What is the value of csc(θ) in terms of sin(θ)?

Back

csc(θ) = 1/sin(θ)

Front

Simplify: (secθ - 1)(secθ + 1) = ?

Back

tan²θ