Doubt_Activity question 3,4,7.....Anyone....??

[prasenj...@gmail.com]

Activity question 3-Not graded

Doubt- Sq root 49 is rational and is integer.

Activity question 4- not graded

 

How empty set Contains one element..? Phi represents the empty set, but {phi} represents  the set with one element which is not empty set.

Activity Questions 7 - Not Graded

How the answer would be 50..There is no clarity on how many use both television and radio..Is the question says 150 use only television. I think no. The language of all other problems are in the same way which includes both. Hence there is no clarity..

Please Clarify my doubts anyone...

[niraj gaurav]

try attaching the question as well if possible. (copy paste)