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Mathematics 16 Online
OpenStudy (ttop0816):

i think its false but im not sure! please tell me (: D = {x|x is a whole number} E = {x|x is a perfect square between 1 and 9} F = {x|x is an even number greater than or equal to 2 and less than 9} E ∪ F is {2, 4, 6, 8} true or false?

hartnn (hartnn):

could you find the elements of E ?

OpenStudy (ttop0816):

4??

hartnn (hartnn):

yes, thats correct how about F ?

OpenStudy (ttop0816):

468!

OpenStudy (ttop0816):

then it would be false for sure! lol

hartnn (hartnn):

why not 2 ?

hartnn (hartnn):

even number greater than or EQUAL to 2, has 2 :)

OpenStudy (ttop0816):

omg i've mistaken the union sign as a intersection!

hartnn (hartnn):

its union, so its true :)

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