15 terms

Let A = {1,3,5,a} and B = {a,b,c,d,3}. Find A∩B

{a,3}

If we let A = {1,3,4} and B = {1,2,3,4,5,t,h,e} then A⊆B

true

Express the set {-1,0,1,2,3} in set-builder notation.

{x | -2 < x < 4}

Find the cardinality of {a,1,b,c}.

4

Let A = {7,8,9} and B = {Ø}. Find A ∪ B.

{7,8,9,Ø}

Find the bitwise AND of the two bit strings 1110 and 0101.

0100

Let A = {0,1} and B = {r,t,y}. Then

A x B = {(r,0), (r,1),(t,0),(t,1),(y,0)(y,1)}.

A x B = {(r,0), (r,1),(t,0),(t,1),(y,0)(y,1)}.

False

Let A = {7, {7}, {7,{7}}} and B = {7,{7}}. Is B⊂A?

Yes

{1,3} ∈ {1,3,{1}},{3}}

False

Find |A|, where A ={3,{3},2,{2,3}}.

4

Let U = {a,l,g,o,r,i,t,h,m} and A = {i,t}. Find A^c.

{a,l,g,o,r,h,m}

{1,Ø} ⊂ {{1},Ø,{Ø}}

False

Let A = {g,r,a,y}, B = {t,a,n}, and C = {b,l,u,e}. Find A ∪ B ∪ C.

{g,r,a,y,t,n,b,l,u,e}

Let A = {1,2,3,4,a} and B = {a,n,d,1,2}. Find the following:

(a) A - B

(b) B - A

(a) A - B

(b) B - A

(a) is {3,4}

(b) is {n,d}

(b) is {n,d}

{a,b,c} = {c,a,b,c}

True