Find the Exact Value cos(40/41)

Problem

cos(40/41)

Solution

1. Identify the expression as the cosine of a constant value, 40/41 radians.

2. Determine if the value can be simplified using standard trigonometric identities or special angles.

3. Conclude that since 40/41 is not a standard multiple of π or a special angle, the exact value is simply the expression itself.

Final Answer

cos(40/41)=cos(40/41)

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