In the following questions, a question is followed by data in the form of two statements labelled as I and II. You must decide whether the data given in the statements are sufficient to answer the questions.
What is the value of $$\cos^{4} \theta + \sec^{4} \theta$$ ?
(I) $$\sin^{2} \theta + \cos^{2} \theta = 1$$
(II) $$\cos \theta + \sec \theta = 2$$
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