Question

Write the set using the roster method A=a an even number and 15< a< =25

Answer 1

{16, 17, 18, 19, 20, 21, 22,23, 24, 25}

Explanation:

Given the set A=a an even number and 15< a< =25

The inequality 15< a< =25 mean the set A consists of all the values between 15 and 25 with 25 inclusive (due to presence of the equal to sign)

Hence the required set A are {16, 17, 18, 19, 20, 21, 22,23, 24, 25}

Note that 15 is excluded from the set of number since 15<a i.e a > 15