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write using symbol "4 more than twice of a number is less than six for all natural numbers."
write using symbol "Square of some real numbers is positive."
?
1
write contrapositive of “If a shape is rectangular then it is a parallelogram”.
If a shape is not a parallelogram then it is not rectangular.
“If a shape is rectangular then it is a parallelogram”. write Converse
If a shape is a parallelogram then it is rectangular.
“If a shape is rectangular then it is a parallelogram” Write the inverse
Inverse: If a shape is not rectangular then it is not a parallelogram.
?
b
?
?
1
If n(AxB)=6 and n(BxC)=21, what can n(AxC) be?
14
Given A = {1, 2, 5} and n(B) = 4, find the number of the elements of A x B.
12
Let A = {1, 2, 3} find n(AXA)
9
Let A = {1, 2, 3} and B = {x, y}. Find n(AXB)
6
If A x B = {(a, 1), (a, 3), (a, 5), (b, 1), (b, 3), (b, 5)}.then write A
a,b
If A = {a, b, 1} and B = {a, 2}, write the elements of A x B
What is y if (x – y, 6 + 3x) = (4, 15)?
-1
If (x – 1, y + 2) = (y + 3, 5), find x.
7
If (4x – y, 3) = (7, 6x – 3y) , find x and y.
x=3 and y=5
If n(A)=10, n(B)=7 and n(A∪B)=13, what is n(A∩B)?
4
find A∩B∩C
d
find C ∪ (A ∩ B)
c,d,e,g,h
find A ∩ (B ∪ C)
c,d,e
find B-A
4,5,7
find A-B
1,2
find A union B
1,2,3,4,5,6,7
find A intersect B
3,6
find B
3,6,7,5,4
find A
1,2,3,6
If the set A has 32 subsets, find n(A)
5
Each subset of a set other than itself is called a/an .....
 
proper subset
 
subset
 
equivalent set
 
equal set
how many subsets of A=(a,b,c,d) contain the element c?
8
how many subsets of A=(a,b,c,d) do not contain the element b?
8
If a set A with n elements has 63 proper subsets, find n
6
Which one is a finite set?
 
Set of five digit numbers
 
set of natural numbers
 
set of prime numbers
 
set of integers less than 86
If A=(4,8,12,16, ... , 80,84) what is n(A)?
 
21
 
24
 
20
 
18
Which one represents the set A=(x: -3<x<6, x is even)?
 
(-2,0,2,4)
 
(0,2,4)
 
(2,4)
 
(2,4,6)
if the set A is formed by the letters in the word "mathematics" find n(A).
 
8
 
11
 
7
 
6
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