document.write( "Question 1158642: Set-Builder Notation and Interval Notation.
\n" ); document.write( "Suppose A={x is an element of real number: -2 less than or equal to X < 5 } and B= (-1, 6]
\n" ); document.write( "1. Find A U B and give the answer in interval notation. (7marks)
\n" ); document.write( "2. Write A n (intersection) B as one set using set builder notation (4marks)
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Algebra.Com's Answer #781693 by MathLover1(20849)\"\" \"About 
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Set-Builder Notation and Interval Notation.\r
\n" ); document.write( "\n" ); document.write( "Suppose A={ \"x\" is an element of real number: \"-2+%3C=x+%3C+5\" } and B= (\"-1\", \"6\"]\r
\n" ); document.write( "\n" ); document.write( "=>\"A\"=\"-2\",\"-1\",\"0\",\"1\",\"2\",\"3\",\"4\"\r
\n" ); document.write( "\n" ); document.write( "=>\"B\"=\"-2\",\"-1\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\"\r
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\n" ); document.write( "\n" ); document.write( "1. Find A U B and give the answer in interval notation. \r
\n" ); document.write( "\n" ); document.write( "means: the new set that contains every element from either of \"A\" and \"+B\"\r
\n" ); document.write( "\n" ); document.write( "in your case \"B\" contains every element from \"A\" and some more, so union is actually set \"B\"\r
\n" ); document.write( "\n" ); document.write( "\"A\" U \"B\"=\"B\"=\"-2\",\"-1\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\"\r
\n" ); document.write( "\n" ); document.write( "in interval notation: (\"-1\", \"6\"]\r
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\n" ); document.write( "\n" ); document.write( "2. Write A (intersection) B as one set using set builder notation.\r
\n" ); document.write( "\n" ); document.write( "means: the new set that contains every element that is in both of the input sets; only things inside both of the input sets get added to the new set\r
\n" ); document.write( "\n" ); document.write( "in your case all elements of \"A\" are also elements of \"B\", so intersection is actually set \"A\"\r
\n" ); document.write( "\n" ); document.write( "\"+A\"\"B\"= \"A\"=\"-2\",\"-1\",\"0\",\"1\",\"2\",\"3\",\"4\"\r
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\n" ); document.write( "\n" ); document.write( "{ \"x\" is an element of real number: \"-2+%3C=x+%3C+5\" } \r
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