NCERT CLASS11 MATHS CH-1
Extra Question
Q. 1) How many elements has P(A), if A={ }.
Q. 2) If A and B ate two sets such that A is subset of B, then what is A union B?
Q. 3) Prove that (A union B) -(A intersection B) =(A-B) union (B-A).
Q. 4) Ina committee 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least of these two languages ?
No comments:
If you have any doubt so you can comment me then i will 100% help you ,Through comment Chat