Simplify the Expression Algebraically $\cos ( 2 x + 4 y ) \cos ( 2 x - 4 y )$

question 13

Short Answer

Simplify the expression algebraically.
​ $\cos ( 2 x + 4 y ) \cos ( 2 x - 4 y )$ ​

---

Definitions:

Formatting Letters

The process of organizing and structuring letters in a specific style or according to standard conventions.

Memos

Brief printed documents traditionally used for the routine, day-to-day exchange of information within an organization.

White Space

The unmarked portions of a page or screen, used in design to create separation between elements, improve readability, and balance visual layouts.

Artwork

Visual art pieces such as paintings, drawings, or sculptures created as forms of expression or aesthetic value.