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# The sets and are defined as follows. B {y|y _ 1 } C {y|y

The sets and are defined as follows.
F ={z|z> 2 }
H ={z | z <_ 7 }
if the set is empty write null(o)

Write and using interval notation.

F U H = ?

F n H= ?

Just a clarification; in set B is y less or equal than 1?
In set C is y strictly greater than 8?

If yes the answer are below

BUC = (-infinity, 1] U (8, infinity)

BnC = empty set (the crossed zero)

Customer: replied 7 years ago.
no i edited the question
The sets and are defined as follows.
F ={z|z> 2 }
H ={z | z <_ 7 }
if the set is empty write null(o)

Write and using interval notation.

F n H = (2, 7]

F U H= (-infinity, infinity)

Edited by danmelcul on 5/3/2010 at 3:48 AM EST
Customer: replied 7 years ago.
The sets and are defined as follows. E = { y | y _> 4 } F = { y | y > 5 } write E U F and E n F using interval notation E U F =? E n F =?
Customer: replied 7 years ago.
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Customer: replied 7 years ago.
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