document.write( "Question 1014444: Please show work. \r
\n" ); document.write( "\n" ); document.write( "Set A = (-3, 3) and set B = [-3, 3]\r
\n" ); document.write( "\n" ); document.write( "Find a) A∩B b) A∪B
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Algebra.Com's Answer #630752 by josgarithmetic(39630)\"\" \"About 
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Pay attention to exactly what the interval notations say and what the set statements say;
\n" ); document.write( "A does NOT include the two boundary numbers but set B does include them.\r
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\n" ); document.write( "\n" ); document.write( "(a)
\n" ); document.write( "A INTERSECTED with B is just set A; the values BETWEEN the the two boundaries are common to A and B.\r
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\n" ); document.write( "\n" ); document.write( "(b)
\n" ); document.write( "A UNITED with B is set B; the union of the two sets, so this will INCLUDE the boundary values.
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