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Ranak Sharma
Subject: Maths
, asked on 24/5/18
Solve this :
P
rove using properties of sets and their complements .
(
1
)
A
∪
B
∩
A
∪
B
'
=
A
(
2
)
A
-
A
∩
B
=
A
-
B
(
3
)
A
∪
B
-
C
=
A
-
C
∪
B
-
C
(
4
)
A
-
B
∪
C
=
A
-
B
∩
A
-
C
(
5
)
A
∩
B
-
C
=
A
∩
B
-
A
∩
C
.
Answer
1
Shikhar
Subject: Maths
, asked on 24/5/18
Good Evening Sir.
I had a doubt regarding sets chapter. I did'nt understand question no. 15 & 16 in miscellaneous exercise of sets in NCERT on page number 27. Can you please explain that.
Answer
1
Ranak Sharma
Subject: Maths
, asked on 22/5/18
Please answer questing 24
Q24. If
θ
= { x : x
∈
N and x
≤
10}
A = { x : x is prime and x
≤
10}
B = { x : x is a factor of 24}
Verify the following result
(i) A – B = A ⌒ B'
(ii) (A
∪
B)' = A' ⌒ B'
(iii) (A ⌒B)' = A'
∪
B'
Answer
1
Vaishnavi Gupta
Subject: Maths
, asked on 19/5/18
E={x:x^2+x-4}
Answer
1
Sanitya Srivastava
Subject: Maths
, asked on 17/5/18
If R is a set of all real numbers and Q is the set of all rational numbers then what is R-Q?
Answer
2
Jeosph
Subject: Maths
, asked on 17/5/18
Prove that if a is a subset of b; the a intersection b is a
Answer
1
Arvind
Subject: Maths
, asked on 14/5/18
Guys... any1 can solve the 7th question plz... its urgent..
Answer
2
Dipesh Kumar Karesia
Subject: Maths
, asked on 13/5/18
PLZ TELL ME WHAT ( ) AND [ ] SIGNIFIES, INCLUDED OR NOT INCLUDED?? WITH EXAMPLES VERY CONFUSING
Answer
1
Harini
Subject: Maths
, asked on 12/5/18
in an ifinite set , we have infinite elements , but why the cardinality is not infinity rather not defined ????
Answer
1
Vaishnavi Gupta
Subject: Maths
, asked on 12/5/18
A={x:x?=Z and |x|
Answer
1
Vaishnavi Gupta
Subject: Maths
, asked on 12/5/18
E={x:x^2+x-4=0}
Answer
1
Vaishnavi Gupta
Subject: Maths
, asked on 12/5/18
C={1,-1,i,-i}
Answer
1
Samridhi Sinha
Subject: Maths
, asked on 11/5/18
prove A-(A intersection B)= A-B
Answer
1
अर्कज
Subject: Maths
, asked on 11/5/18
Explain 4 ,5, 11, 12 ,13 ,14, 15 and the new signs ,:
4
.
A
~
∩
i
=
1
n
A
i
=
∪
i
=
1
n
A
~
A
1
5
.
A
~
∪
i
=
1
n
A
i
=
∩
i
=
1
n
A
~
A
1
.
11
.
A
~
B
=
A
∩
B
C
Answer
1
अर्कज
Subject: Maths
, asked on 11/5/18
Example 12
Answer
1
1
2
3
4
5
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What are you looking for?
I had a doubt regarding sets chapter. I did'nt understand question no. 15 & 16 in miscellaneous exercise of sets in NCERT on page number 27. Can you please explain that.
Q24. If = { x : x N and x 10}
A = { x : x is prime and x 10}
B = { x : x is a factor of 24}
Verify the following result
(i) A – B = A ⌒ B'
(ii) (A B)' = A' ⌒ B'
(iii) (A ⌒B)' = A' B'