Linearize the Trigonometric Powers Part 1

Geometry Level 1

\[ \cos^2 \theta = a_2 \cos (2 \theta) + a_0 \]

Above shows a trigonometric identity for constants \(a_0, a_2 \).

What is the value of \(a_0 + a_2\)?

See Part 2, Part 3, and Part 4.

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