Define a relation C from R to R as follows: For any (x, y)  £ R x R.  (x, y)  C means that x² + y² = 4 A. Is (0,0) £ C?  B.  Is -1, -1) £ C?  C.  Is (½, ½) £ C?  D. Is -2 C 1? E. Is 0 C 1?  F. Is -1 C -2?

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A: Explanation of the answer is as follows

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