Write the Given Expression as the Cosine of an Angle $\cos 60 ^ { \circ } \cos 25 ^ { \circ } - \sin 60 ^ { \circ } \sin 25 ^ { \circ }$

question 59

Multiple Choice

Write the given expression as the cosine of an angle. $\cos 60 ^ { \circ } \cos 25 ^ { \circ } - \sin 60 ^ { \circ } \sin 25 ^ { \circ }$ ​

• A) \(\cos \left( 25 ^ { \circ } \right)\)
• B) \(\cos \left( 85 ^ { \circ } \right)\)
• C) \(\cos \left( 35 ^ { \circ } \right)\)
• D) \(\cos \left( 60 ^ { \circ } \right)\)
• E) \(\cos \left( - 50 ^ { \circ } \right)\)

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Definitions:

Chemical

A substance with a distinct molecular composition that is produced by or used in a chemical process.

Carcinomas

A type of cancer that begins in the skin or the tissue lining organs, such as the liver or kidneys.

Epithelial Tissues

Layers of cells that line or cover the body surfaces, both internal and external, playing roles in protection, secretion, and absorption.

Bx

A shorthand notation for biopsy, a medical test involving the extraction of sample cells or tissues for examination.