Let A = { factors of 36 } and B = { factors of 48 } find A∩B?
{ 1, 5, 7, 11 }
{ 1, 2, 3 }
{ 1, 2, 3, 4, 5, 6, 12 }
{ 1, 2, 3, 4, 6, 12 }
The statement of the form " If ... then... " is called ______.
conjunction
disjunction
negation
implication
The negation of the statement "5 is a prime number" is__________.
5 is a composite number
5 is a prime number
5 is not a prime number
both (2) and (3)
If U = { 1, 2, 3, 4, 5, 6, 7, 8 }, A = { 1, 2, 3, 4 }. Find A′ ?
{ 2, 4, 5, 7 }
{ 2, 4, 6, 8 }
{ 5, 6, 7, 8 }
{ 1, 3, 4, 6, 7 }
If A = { 1, 3, 7 }, B = { 2, 4, 7 }, then A∪B = ___________.
{ 1, 2, 3, 4 }
{ 1, 3, 7, 4, 7 }
{ 1, 2, 3, 4, 7 }
{ 1, 2, 4 }
If a dice is thrown, the probability of getting an even number is __________.
2
1/3
1/2
1/6
If U = { 1, 2, 3, 4, 5, 6, 7, 8 }, A = { 1, 2, 3, 4 }, B = { 2, 4, 5, 7 } and C = { 2, 4, 6, 8 }. Then (A∩B)′ ?
{ 1, 3 }
{ 2, 4 }
{ 1, 3, 5, 6, 7 }
{ 1, 3, 5, 6, 7, 8 }
Let A = { factors of 36 } and B = { factors of 48 }, which of the following is true?
n(A∪B) = n(A) + n(B) - n(A∩B)
n(A∪B) = n(A) + n(B) + n(A∩B)
n(A∪B) = n(A) + n(B)
n(A∪B) = n(A∩B) - n(A) - n(B)
The statement which uses the connective OR is called a ______.
If A = { a, b, c, d }, then A ∩ ∅ = ?
{ a, b, c, d }
∅
{ a, b, c, d, 0 }
0
