Exam 2: The Basic Concepts of Set Theory

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The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana. soybeans (s) soybeans (s) soybeans (s) peanuts (p) rice (r) sugarcane (n) corn (c) cotton (t) rice (r) hay (h) hay (h) corn (c) wheat (w) wheat (w) cotton (t) Let U be the smallest possible universal set that includes all of the crops listed, and let A, K and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find each of the following sets. -The set of crops in both A and L'

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Let U = {all soda pops}, A = {all diet soda pops}, B = {all cola soda pops}, C = {all soda pops in cans}, and D = {all caffeine-free soda pops}. Describe the set in words. - (A−D)∩B( A - D ) \cap B

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Identify the set as finite or infinite. - {x∣x\{ x \mid x is a counting number larger than 398}398 \}

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Find the cardinal number of the set. - {x∣x\{ x \mid x is a real number between 1.11.1 and 1.2}1.2 \}

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Let A and B be sets with cardinal numbers, n(A)= a and n(B)= b, respectively. Decide whether the statement is true or false. -  If B⊆A,n(B)=n(A−B)\text { If } \mathrm { B } \subseteq \mathrm { A } , \mathrm { n } ( \mathrm { B } ) = \mathrm { n } ( \mathrm { A } - \mathrm { B } )

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Solve the problem. -List all possible subsets of the set {m, n}.

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Determine whether the sets are equal, equivalent, both, or neither. -{72, 40, 27} and {40, 27, 72}

(Multiple Choice)
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Shade the regions representing the set. - (A∩B)∪(A∪B)′( A \cap B ) \cup ( A \cup B ) ^ { \prime }  Shade the regions representing the set. - ( A \cap B ) \cup ( A \cup B ) ^ { \prime }

(Multiple Choice)
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Write a description of the shaded region using the symbols A, B, C, ∪\cup , ∩\cap , -, and ' as needed. - Write a description of the shaded region using the symbols A, B, C,   \cup ,   \cap , -, and ' as needed. -

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Let U = {all soda pops}, A = {all diet soda pops}, B = {all cola soda pops}, C = {all soda pops in cans}, and D = {all caffeine-free soda pops}. Describe the set in words. - (A′∩B′)∪C\left( \mathrm { A } ^ { \prime } \cap \mathrm { B } ^ { \prime } \right) \cup \mathrm { C }

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Let U = {all soda pops}, A = {all diet soda pops}, B = {all cola soda pops}, C = {all soda pops in cans}, and D = {all caffeine-free soda pops}. Describe the set in words. - (A∪B)∪D( A \cup B ) \cup D

(Multiple Choice)
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Write the set in set-builder notation. - {9,12,15,18,…,39}\{ 9,12,15,18 , \ldots , 39 \}

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The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana. soybeans (s) soybeans (s) soybeans (s) peanuts (p) rice (r) sugarcane (n) corn (c) cotton (t) rice (r) hay (h) hay (h) corn (c) wheat (w) wheat (w) cotton (t) Let U be the smallest possible universal set that includes all of the crops listed, and let A, K and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find each of the following sets. - A∩K∩LA \cap \mathrm { K } \cap \mathrm { L }

(Multiple Choice)
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Tell whether the statement is true or false. - {2,8,13}={0,2,8,13}\{ 2,8,13 \} = \{ 0,2,8,13 \}

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Find the cardinal number of the set. - {8,9,10,11,…}\{ 8,9,10,11 , \ldots \}

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List the elements in the set . Let =\{,,,,,,,,,\} =\{,,,,\} =\{,,,\} =\{,,,,\} - B∩CB \cap C

(Multiple Choice)
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Find the indicated cardinal number. -Find n(G)n ( G ) , given that n(D×G)=20n ( D \times G ) = 20 and D={7,8,9,10}D = \{ 7,8,9,10 \} .

(Multiple Choice)
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The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana. soybeans (s) soybeans (s) soybeans (s) peanuts (p) rice (r) sugarcane (n) corn (c) cotton (t) rice (r) hay (h) hay (h) corn (c) wheat (w) wheat (w) cotton (t) Let U be the smallest possible universal set that includes all of the crops listed, and let A, K and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find each of the following sets. - L∩K\mathrm { L } \cap \mathrm { K }

(Multiple Choice)
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List the elements in the set . Let =\{,,,,,,,,,\} =\{,,,,\} =\{,,,\} =\{,,,,\} - A′−C\mathrm { A } ^ { \prime } - \mathrm { C }

(Multiple Choice)
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Determine whether the sets are equal, equivalent, both, or neither. -{4, 12} and {4, 1, 2}

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