Question: Please help me with this problem, thank you!!! Question 1. Show that the following sets of numbers are elds if the usual addition and multiplication

Please help me with this problem, thank you!!!

Question 1. Show that the following sets of numbers are elds if the usual addition and multiplication of arithmetic are used: (1) the set of all numbers of the form a + b \\5 where a and b are rational numbers. (2) the set of all numbers of the form a + b \\l1 where a and b are real numbers. What is this eld

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