What are the quotient identities for a trigonometric functions?

What are the quotient identities for a trigonometric functions?

As below

Explanation:

Quotient Identities. There are two quotient identities that can be used in right triangle trigonometry. A quotient identity defines the relations for tangent and cotangent in terms of sine and cosine. … . Remember that the difference between an equation and an identity is that an identity will be true for ALL values.