tolong di jwb yg benar ya..

jawabannya
a. {1,2,3,4,5,6,7}
b. {1,2,3,4,5}
c. {3,4,5,6,7}
d. {3,5,6,8}
Mohon maaf kalau ada yg salah. Mohon dimaklumi

A= {1,2,3,,4,5,6,7}
= {1,2,3,4,5}
= {3,4,5,6,7}
= {3,5,6,8}