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4. Which of the following sets is a subset of {r E Q : x2 2 16} (explain). a. {rER : x> 5} b. {x

4. Which of the following sets is a subset of {r E Q : x2 2 16} (explain). a. {rER : x> 5} b. {x Ez : x2 > 10} c. {TEN : 2x + 1

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