Question

Which of the following sets are equal (select all that are equal)? a. {x € Zlx >0} b.N c. {x e Qlx >0} d. {x € Rjx >0} Ос Od Ob

Answer 1

solution: Two sets, P and os, are enal sets if they have exactly the same members. Each element of P are in a And each element are in P. order. of elements in a set is not important. of Q The

Solution: ay {xtzlxxo} {0, 1, 2 0, 1, 2, 3, 4, 5, 6, natural no number by IN= set of {1, 2, 3, 4, 5, 6, IN دلن) xy,o} ey { neg l x> Sei ged (P, 4) = 1, 470, b>0, asol {XEIR I xx,o} Now, o a and are not equal since E xE71 x 7 27,0? but 0 o& IN

( are not equal since 2 Ź E{XEB 1x zo} xro} xtz I xro but are a not equal since ☆ EL XEIR l azo} but Y3 & {REZ 1x70? & are not e cual since Ž E{x EQ. 1*720? Ž ¢{ 1, 2, 3, - ? but eire not equal b and since & € {x+1R | 87,07 but Yz & IN d are not and ernal irrational no.ie but since 12 € {XEIR layo} but 12 ¢ {xtQ 1 xz,o}