Problem

Problem

For any real θ\theta , the maximum value of cos⁡2(cos⁡θ)+sin⁡2(sin⁡θ)\cos^2(\cos \theta) + \sin^2(\sin \theta) is a. 1 b. 1 + \sin^2 1 c. 1 + \cos^2 1 d. does not exist

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