Simplify cos(38)

Problem

cos(38^∘)

Solution

1. Identify the expression as a trigonometric value of a non-standard angle.

2. Evaluate the necessity for further simplification. The angle 38^∘ is not a standard angle (like 30^∘ 45^∘ or 60^∘ and cannot be expressed in simpler radical form using standard half-angle or sum-to-product identities without resulting in more complex nested radicals.

3. Determine the final form. In most mathematical contexts, cos(38^∘) is already considered to be in its simplest exact form.

Final Answer

cos(38^∘)=cos(38^∘)

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