Write the relation R = {(x, x³): x is a prime number less than 10} in roster form.

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Solution

R = {(x, x³): x is a prime number less than 10}

The prime numbers less than 10 are 2, 3, 5, and 7.

∴R = {(2, 8), (3, 27), (5, 125), (7, 343)}

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