Fundamental Identities

Question 1

Sin θ = ?

Answer 1

1 / csc θ, Cos (π/2 - θ)

Question 2

Cos θ = ?

Answer 2

1 / sec θ, Sin (π/2 - θ)

Question 3

Csc θ = ?

Answer 3

1 / sin θ, Sec (π/2 - θ)

Question 4

Sec θ = ?

Answer 4

1 / cos θ, Csc (π/2 - θ)

Question 5

Tan θ = ?

Answer 5

1 / cot θ, Cot (π/2 - θ)

Question 6

Pythagorean Identities

Answer 6

1) sin^2 θ + cos^2 θ = 1
2) 1 + tan^2 θ = sec^2 θ
3) 1 + csc^2 θ = cot^2 θ

Question 7

Cot θ = ?

Answer 7

1 / tan θ, Tan (π/2 - θ)