Question

"The use of Mobile Phones must be allowed in schools." Express your views either for or against the statement.

Answer 1

Answer:

Hey !

Explanation:

Increase in screen time leads to several eye-sight and neurological disorders. It causes a major distraction among students and also promotes cheating. This can be prevented to by prohibiting mobile phones in the school premises.

Also, it helps them to focus only on their studies and protects them against the negatives of technology.

mark as brainliest!!

Answer 2

$Helo$

$Helo$Given,

A and B are the two sets which contains 3 and 6 elements respectively

Therefore,

n(A) = 3

n(B) = 6

Maximum no. of elements in AUB

AUB wil be maximum when, the both A and B are Disjoint sets

To find Maximum no. of elements, we have to add the no. of elements of both sets

Therefore,

n(AUB) = n(A) + n(B)

n(AUB) = 3+6

n(AUB) = 9

Minimum no. of elements in AUB

AUB will be minimum, when A is a sub-set of B

If, A C B

Then,

n(AUB) = 6

Hence,

Maximum number of elements in AUB=9

minimum number of elements in AUB=6