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Describe the following sets in Roster form: {x : x is a prime number which is a divisor of 60}

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Question

Describe the following sets in Roster form: 

{x : x is a prime number which is a divisor of 60} 

Sum
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Solution

First, let's find all the divisors of 60 and then identify which of these are prime numbers.

The divisors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.

Out of these, the prime numbers are: 2, 3, 5.

Prime numbers are numbers greater than 1 that have no divisors other than 1 and themselves.

So, the set in roster form is {2, 3, 5}.

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Chapter 1: Sets - Exercise 1.02 [Page 6]

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R.D. Sharma Mathematics [English] Class 11
Chapter 1 Sets
Exercise 1.02 | Q 1.6 | Page 6

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