Use the Properties of the Trigonometric Functions to Find the Exact

question 300

Multiple Choice

Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.
- $\tan 40 ^ { \circ } \cot 40 ^ { \circ }$

• A) -1
• B) 40
• C) 1
• D) 0

---

Definitions:

Stratified Squamous Epithelium

A type of epithelial tissue composed of several layers of cells, with the outermost layer consisting of flattened squamous cells, providing protection in areas subject to abrasion.

Simple Columnar Cells

A single layer of tall, closely packed cells, lining some sections of the gastrointestinal tract and other areas, involved in absorption and secretion.

Red Blood Cells

The cells in the blood that carry oxygen from the lungs to the body tissues and carbon dioxide back to the lungs.

White Blood Cells

Cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.