Determine which of the following sets are closed under multiplication. c) {7, 14, 21,...}) e) {0, 1, 7) d) {7, 9, 11, 13,...} a)

Question

Determine which of the following sets are closed under multiplication.
c) {7, 14, 21,...})
e) {0, 1, 7)
d) {7, 9, 11, 13,...}
a) {0, 14)
b) {0}
a) {0, 14) is closed under multiplication.
O False
OTrue

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