Question

Write down the following sets in set-builder form:
i) {10, 20, 30, 40, 50},
ii) {a, e, i, o, u}
iii) (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}

Answer 1

concept : To express the set in Set-builder Form actual elements of the set are not listed but a rule or a statement or a formula in the briefest possible way.

i) {10, 20, 30, 40, 50}

= {x : x is a positive integral multiple of 10 upto 50}

ii) {a, e, i, o, u}

= {x : x is a vowel in English alphabet}

iii) { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}

= {x : x is a name of the week }

Answer 2

see attachment

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