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Enumerate the set explicitly - your answer may not include set arithmetic operations.
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", "scripts": {}, "marks": 0, "type": "gapfill"}, {"variableReplacementStrategy": "originalfirst", "gaps": [{"answer": "{set2 and set3}", "vsetrange": [0, 1], "notallowed": {"showStrings": false, "partialCredit": 0, "strings": ["or ", "intersect", "and ", "union "], "message": "Enumerate the set explicitly - your answer may not include set arithmetic operations.
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", "scripts": {}, "marks": 0, "type": "gapfill"}, {"variableReplacementStrategy": "originalfirst", "gaps": [{"answer": "{set1 and (universal-set3)}", "vsetrange": [0, 1], "notallowed": {"showStrings": false, "partialCredit": 0, "strings": ["or", "and", "union", "intersect"], "message": "Enumerate the set explicitly - your answer may not include set arithmetic operations.
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", "scripts": {}, "marks": 0, "type": "gapfill"}, {"variableReplacementStrategy": "originalfirst", "gaps": [{"answer": "{((universal-set1) or set3) and set2}", "vsetrange": [0, 1], "notallowed": {"showStrings": false, "partialCredit": 0, "strings": ["or", "and", "union", "intersect"], "message": "Enumerate the set explicitly - your answer may not include set arithmetic operations.
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", "scripts": {}, "marks": 0, "type": "gapfill"}, {"variableReplacementStrategy": "originalfirst", "gaps": [{"answer": "{(set1 or (universal-set2)) and set3}", "vsetrange": [0, 1], "notallowed": {"showStrings": false, "partialCredit": 0, "strings": ["or", "and", "union", "intersect"], "message": "Enumerate the set explicitly - your answer may not include set arithmetic operations.
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", "scripts": {}, "marks": 0, "type": "gapfill"}], "name": "Luis's copy of Andrew's copy of set3", "ungrouped_variables": ["a", "b", "c", "d", "f", "universal", "set1", "set2", "set3"], "variables": {"a": {"description": "", "definition": "random(15..30)", "templateType": "anything", "name": "a", "group": "Ungrouped variables"}, "d": {"description": "", "definition": "random(5..c-1)", "templateType": "anything", "name": "d", "group": "Ungrouped variables"}, "set1": {"description": "", "definition": "set(b..c)", "templateType": "anything", "name": "set1", "group": "Ungrouped variables"}, "c": {"description": "", "definition": "b+random(10..a-b)", "templateType": "anything", "name": "c", "group": "Ungrouped variables"}, "f": {"description": "", "definition": "random(2,3,5,6)", "templateType": "anything", "name": "f", "group": "Ungrouped variables"}, "set2": {"description": "", "definition": "set(d+1..a)", "templateType": "anything", "name": "set2", "group": "Ungrouped variables"}, "set3": {"description": "", "definition": "set(mod_set(1,a,f))", "templateType": "anything", "name": "set3", "group": "Ungrouped variables"}, "b": {"description": "", "definition": "random(3..8)", "templateType": "anything", "name": "b", "group": "Ungrouped variables"}, "universal": {"description": "", "definition": "set(1..a)", "templateType": "anything", "name": "universal", "group": "Ungrouped variables"}}, "preamble": {"css": "", "js": ""}, "statement": "In this question, the universal set is $\\mathcal{U}=\\{x \\in \\mathbb{N}\\; | \\;x \\leq \\var{a}\\}$.
\nLet:
\n$A=\\{x \\in \\mathbb{N}\\;|\\;\\var{b}\\leq x \\leq \\var{c}\\}$.
\n$B=\\{x \\in \\mathbb{N}\\;|\\;x \\gt \\var{d}\\}$.
\n$C=\\{ x \\in \\mathbb{N}\\;|\\; x \\text{ divisible by } \\var{f}\\}$.
\nEnumerate the following sets.
\nNote that you input sets in the form set(a,b,c,d)
.
For example set(1,2,3)
gives the set $\\{1,2,3\\}$.
The empty set is input as set()
.
Also some labour saving tips:
\nIf you want to input all integers between $a$ and $b$ inclusive then instead of writing all the elements you can input this as set(a..b)
.
If you want to input all integers between $a$ and $b$ inclusive in steps of $c$ then this is input as set(a..b#c)
. So all odd integers from $-3$ to $28$ are input as set(-3..28#2).
Notation set(a..b)
and set(a,b,c)
cannot be mixed. For example set(a..b,c)
will not be processed as expected.