Question

Exer
1. Write the following in roster form.
(i) {x EN: x2 < 121 and x is a prime}.
(ii) the set of all positive roots of the equation (
(iii) {x EN: 4x + 9 < 52}.
(iv) {x: 2+2 = 3, x ER-{-2}}.
2. Write the set {-1,1} in set builder form.
3. State whether the following sets are finite or infir
(i) {x EN:x is an even prime number}.
(ii) {x EN: x is an odd prime number}.​

Answer 1

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