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Mathematics 14 Online
OpenStudy (erickmanzo):

If A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}, then which of the following statements is false?

hartnn (hartnn):

what are your options? :)

OpenStudy (erickmanzo):

Ø A B B B A

OpenStudy (mathstudent55):

Something's missing.

OpenStudy (erickmanzo):

whats missing?

hartnn (hartnn):

symbols like \(\cup, \cap , \in \) in between?

OpenStudy (erickmanzo):

Thats how the question is.

hartnn (hartnn):

can you post the screenshot of the question ?

OpenStudy (erickmanzo):

hartnn (hartnn):

\(B \subset A \) B is the subset of A do you know what that means?

OpenStudy (erickmanzo):

not really???]

hartnn (hartnn):

B is the subset of A, means ALL the elements of B are the part of A also. for eg: if B = {1,2,3}, A = {1,2,3,4,5} then we can say B is the subset of A.

hartnn (hartnn):

does that make sense?

OpenStudy (erickmanzo):

yes it does

hartnn (hartnn):

so, is that true for the given sets A,B ?

hartnn (hartnn):

are 3,5,7,9 ALL part of set A?

OpenStudy (erickmanzo):

3,5,7,9 are part b

hartnn (hartnn):

and are they part of A too?

OpenStudy (erickmanzo):

just 7

hartnn (hartnn):

ok, so ALL of them are NOT the part of A, which means 'B is the subset of A' is FALSE.

OpenStudy (erickmanzo):

semis the answer BcB or BcA

hartnn (hartnn):

what? 3rd option is false, others are true.

OpenStudy (erickmanzo):

or thank you hart

hartnn (hartnn):

welcome ^_^

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