Question

if A ={2,3,5,7} and B{1,3,5,7} find AnB ​

Answer 1

Answer:

Given, A={1,3,5,7}

and B={1,2,3,4,5,6,7,8}

Here, n(A)=4 and n(B)=8

Thus number of one-one function from A into B

=8P4=8.7.6.5=1680

Answer 2

Answer:

AnB={3,5,7}

Step by step explanation:

A intersection B (AnB)={2,3,5,7}n{1,3,5,7}

AnB={3,5,7}

I hope it is helpful to you