Algebra

Hot goIITian

Joined: 11 Mar 2012
Post: 124
5 Apr 2012 09:47:08 IST
0 People liked this
9
371 View Post
Sets
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Algebra

A,B,C are 3 sets.If A belongs to B, and B is Subset of C, Is A subset of C?????? Why/Why not?



Comments (9)


Hot goIITian

Joined: 4 Apr 2012
Posts: 121
5 Apr 2012 10:36:34 IST
0 people liked this

the answer is yws.

Because if A belongs to B means it is going to take values from set B only.

Also B is a subset of C means all values from B are present in C. 

 

So invariably A is going to take values from C which are present in set B....

 


Hot goIITian

Joined: 4 Apr 2012
Posts: 121
5 Apr 2012 10:37:00 IST
0 people liked this

Hit like if you find it useful and right.

Blazing goIITian

Joined: 21 Mar 2012
Posts: 1457
5 Apr 2012 10:37:56 IST
0 people liked this

A belongs to B means for every element of A there is corresponding same element in B so A is subset of B and B is subset of C then by mapping we can easily conclude that yes A is subset of C

Hot goIITian

Joined: 11 Mar 2012
Posts: 124
5 Apr 2012 10:45:44 IST
0 people liked this

You are right....but in NCERT , its written A is not a subset of C


Hot goIITian

Joined: 11 Mar 2012
Posts: 124
5 Apr 2012 10:46:08 IST
0 people liked this

You are right....but in NCERT , its written A is not a subset of C


Hot goIITian

Joined: 4 Apr 2012
Posts: 121
5 Apr 2012 10:47:57 IST
0 people liked this

I think it should be.

Hot goIITian

Joined: 4 Apr 2012
Posts: 121
5 Apr 2012 10:48:12 IST
0 people liked this

What do you think?

Hot goIITian

Joined: 11 Mar 2012
Posts: 124
5 Apr 2012 10:52:11 IST
0 people liked this

I think NCERT is Wrong....

A belongs to B, B subset  of C, thus a will definately be Subset of A

EG- Let A ={1}, B ={1,2} and C={1,2,3}

Hence A is Subset if C

Hit like if u find it useful and right

 


Hot goIITian

Joined: 4 Apr 2012
Posts: 121
5 Apr 2012 10:53:58 IST
0 people liked this

Yeah you are right Rajat1196..I'm shocked that NCERT book can make mistakes



Quick Reply


Reply

Some HTML allowed.
Keep your comments above the belt or risk having them deleted.
Signup for a avatar to have your pictures show up by your comment
If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team
Free Sign Up!
Sponsored Ads

Preparing for JEE?

Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015


@ INR 5,443/-

For Quick Info

Name

Mobile

E-mail

City

Class

Vertical Limit

Top Contributors
All Time This Month Last Week
1. Bipin Dubey
Altitude - 16545 m
Post - 7958
2. Himanshu
Altitude - 10925 m
Post - 3836
3. Hari Shankar
Altitude - 10085 m
Post - 2217
4. edison
Altitude - 10825 m
Post - 7804
5. Sagar Saxena
Altitude - 8635 m
Post - 8064
6. Yagyadutt Mishr..
Altitude - 6330 m
Post - 1958

Find Posts by Topics

Physics

Topics

Mathematics

Chemistry

Biology

Parents Corner

Board

Fun Zone