Use the Properties of the Trigonometric Functions to Find the Exact

question 191

Multiple Choice

Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.
- $$\tan 50 ^ { \circ } - \frac { \sin 50 ^ { \circ } } { \cos 50 ^ { \circ } }$$

• A) 0
• B) 50
• C) 1
• D) undefined

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Definitions:

Aqueous Humor

A clear fluid that fills the space in the front part of the eye, helping to maintain pressure and refract light.

Anterior Chamber

The anterior chamber is the fluid-filled space inside the eye between the cornea and the iris.

Vitreous Humor

A jelly-like substance that fills the part of the eye behind the lens and helps the eye keep its shape.

Conjunctivas

Mucous membranes that cover the front of the eye and line the inside of the eyelids, playing a role in lubrication and protection against infection.